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Finding the Fourth Proportional to 612,279.27, 918,417.69 and 163,000.22

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Solution

The fourth proportional to 612,279.27, 918,417.69 and 163,000.22 is: 244,500.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,279.27 : 918,417.69 = 163,000.22 : x
  2. Step 2: Convert to fraction form
    612,279.27/918,417.69 = 163,000.22/x
  3. Step 3: Cross multiply
    612,279.27x = 918,417.69 × 163,000.22
  4. Step 4: Simplify right side
    612,279.27x = 149,702,280,929.80
  5. Step 5: Solve for x
    x = 149,702,280,929.80/612,279.27
  6. Step 6: Final answer
    x = 244,500.00

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.