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Finding the Fourth Proportional to 612,110.55, 918,165.83 and 162,830.55

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Solution

The fourth proportional to 612,110.55, 918,165.83 and 162,830.55 is: 244,245.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,110.55 : 918,165.83 = 162,830.55 : x
  2. Step 2: Convert to fraction form
    612,110.55/918,165.83 = 162,830.55/x
  3. Step 3: Cross multiply
    612,110.55x = 918,165.83 × 162,830.55
  4. Step 4: Simplify right side
    612,110.55x = 149,505,446,275.95
  5. Step 5: Solve for x
    x = 149,505,446,275.95/612,110.55
  6. Step 6: Final answer
    x = 244,245.83

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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.