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Finding the Fourth Proportional to 291,591.60, 402,347.69 and 162,501.87

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Solution

The fourth proportional to 291,591.60, 402,347.69 and 162,501.87 is: 224,225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,591.60 : 402,347.69 = 162,501.87 : x
  2. Step 2: Convert to fraction form
    291,591.60/402,347.69 = 162,501.87/x
  3. Step 3: Cross multiply
    291,591.60x = 402,347.69 × 162,501.87
  4. Step 4: Simplify right side
    291,591.60x = 65,382,253,119.53
  5. Step 5: Solve for x
    x = 65,382,253,119.53/291,591.60
  6. Step 6: Final answer
    x = 224,225.43

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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.