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Finding the Fourth Proportional to 292,006.36, 402,978.42 and 169,489.30

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Solution

The fourth proportional to 292,006.36, 402,978.42 and 169,489.30 is: 233,900.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,006.36 : 402,978.42 = 169,489.30 : x
  2. Step 2: Convert to fraction form
    292,006.36/402,978.42 = 169,489.30/x
  3. Step 3: Cross multiply
    292,006.36x = 402,978.42 × 169,489.30
  4. Step 4: Simplify right side
    292,006.36x = 68,300,530,320.91
  5. Step 5: Solve for x
    x = 68,300,530,320.91/292,006.36
  6. Step 6: Final answer
    x = 233,900.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.