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Finding the Fourth Proportional to 402,906.30, 604,359.45 and 166,170.30

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Solution

The fourth proportional to 402,906.30, 604,359.45 and 166,170.30 is: 249,255.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,906.30 : 604,359.45 = 166,170.30 : x
  2. Step 2: Convert to fraction form
    402,906.30/604,359.45 = 166,170.30/x
  3. Step 3: Cross multiply
    402,906.30x = 604,359.45 × 166,170.30
  4. Step 4: Simplify right side
    402,906.30x = 100,426,591,114.34
  5. Step 5: Solve for x
    x = 100,426,591,114.34/402,906.30
  6. Step 6: Final answer
    x = 249,255.45

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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.