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Finding the Fourth Proportional to 162,302.80, 243,016.80 and 127,310.80

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Solution

The fourth proportional to 162,302.80, 243,016.80 and 127,310.80 is: 190,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,302.80 : 243,016.80 = 127,310.80 : x
  2. Step 2: Convert to fraction form
    162,302.80/243,016.80 = 127,310.80/x
  3. Step 3: Cross multiply
    162,302.80x = 243,016.80 × 127,310.80
  4. Step 4: Simplify right side
    162,302.80x = 30,938,663,221.44
  5. Step 5: Solve for x
    x = 30,938,663,221.44/162,302.80
  6. Step 6: Final answer
    x = 190,623.10

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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.