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Finding the Fourth Proportional to 438,984.64, 605,798.24 and 237,781.44

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Solution

The fourth proportional to 438,984.64, 605,798.24 and 237,781.44 is: 328,138.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,984.64 : 605,798.24 = 237,781.44 : x
  2. Step 2: Convert to fraction form
    438,984.64/605,798.24 = 237,781.44/x
  3. Step 3: Cross multiply
    438,984.64x = 605,798.24 × 237,781.44
  4. Step 4: Simplify right side
    438,984.64x = 144,047,577,856.67
  5. Step 5: Solve for x
    x = 144,047,577,856.67/438,984.64
  6. Step 6: Final answer
    x = 328,138.08

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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.