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Finding the Fourth Proportional to 291,902.83, 402,825.72 and 157,766.83

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Solution

The fourth proportional to 291,902.83, 402,825.72 and 157,766.83 is: 217,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,902.83 : 402,825.72 = 157,766.83 : x
  2. Step 2: Convert to fraction form
    291,902.83/402,825.72 = 157,766.83/x
  3. Step 3: Cross multiply
    291,902.83x = 402,825.72 × 157,766.83
  4. Step 4: Simplify right side
    291,902.83x = 63,552,536,471.43
  5. Step 5: Solve for x
    x = 63,552,536,471.43/291,902.83
  6. Step 6: Final answer
    x = 217,718.13

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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.