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Finding the Fourth Proportional to 291,798.30, 437,697.50 and 225,335.38

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Solution

The fourth proportional to 291,798.30, 437,697.50 and 225,335.38 is: 338,003.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,798.30 : 437,697.50 = 225,335.38 : x
  2. Step 2: Convert to fraction form
    291,798.30/437,697.50 = 225,335.38/x
  3. Step 3: Cross multiply
    291,798.30x = 437,697.50 × 225,335.38
  4. Step 4: Simplify right side
    291,798.30x = 98,628,732,487.55
  5. Step 5: Solve for x
    x = 98,628,732,487.55/291,798.30
  6. Step 6: Final answer
    x = 338,003.11

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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.