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Finding the Fourth Proportional to 291,654.32, 402,483.02 and 157,518.32

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Solution

The fourth proportional to 291,654.32, 402,483.02 and 157,518.32 is: 217,375.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,654.32 : 402,483.02 = 157,518.32 : x
  2. Step 2: Convert to fraction form
    291,654.32/402,483.02 = 157,518.32/x
  3. Step 3: Cross multiply
    291,654.32x = 402,483.02 × 157,518.32
  4. Step 4: Simplify right side
    291,654.32x = 63,398,446,338.92
  5. Step 5: Solve for x
    x = 63,398,446,338.92/291,654.32
  6. Step 6: Final answer
    x = 217,375.31

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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.