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Finding the Fourth Proportional to 291,781.06, 437,671.60 and 225,318.13

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Solution

The fourth proportional to 291,781.06, 437,671.60 and 225,318.13 is: 337,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,781.06 : 437,671.60 = 225,318.13 : x
  2. Step 2: Convert to fraction form
    291,781.06/437,671.60 = 225,318.13/x
  3. Step 3: Cross multiply
    291,781.06x = 437,671.60 × 225,318.13
  4. Step 4: Simplify right side
    291,781.06x = 98,615,344,808.63
  5. Step 5: Solve for x
    x = 98,615,344,808.63/291,781.06
  6. Step 6: Final answer
    x = 337,977.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.