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Finding the Fourth Proportional to 438,902.72, 605,685.75 and 237,698.72

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Solution

The fourth proportional to 438,902.72, 605,685.75 and 237,698.72 is: 328,024.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,902.72 : 605,685.75 = 237,698.72 : x
  2. Step 2: Convert to fraction form
    438,902.72/605,685.75 = 237,698.72/x
  3. Step 3: Cross multiply
    438,902.72x = 605,685.75 × 237,698.72
  4. Step 4: Simplify right side
    438,902.72x = 143,970,727,497.24
  5. Step 5: Solve for x
    x = 143,970,727,497.24/438,902.72
  6. Step 6: Final answer
    x = 328,024.23

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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.