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Finding the Fourth Proportional to 291,627.66, 402,446.18 and 157,491.66

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Solution

The fourth proportional to 291,627.66, 402,446.18 and 157,491.66 is: 217,338.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,627.66 : 402,446.18 = 157,491.66 : x
  2. Step 2: Convert to fraction form
    291,627.66/402,446.18 = 157,491.66/x
  3. Step 3: Cross multiply
    291,627.66x = 402,446.18 × 157,491.66
  4. Step 4: Simplify right side
    291,627.66x = 63,381,917,342.59
  5. Step 5: Solve for x
    x = 63,381,917,342.59/291,627.66
  6. Step 6: Final answer
    x = 217,338.50

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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.