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Finding the Fourth Proportional to 438,179.71, 604,693.88 and 247,192.51

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Solution

The fourth proportional to 438,179.71, 604,693.88 and 247,192.51 is: 341,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,179.71 : 604,693.88 = 247,192.51 : x
  2. Step 2: Convert to fraction form
    438,179.71/604,693.88 = 247,192.51/x
  3. Step 3: Cross multiply
    438,179.71x = 604,693.88 × 247,192.51
  4. Step 4: Simplify right side
    438,179.71x = 149,475,797,978.84
  5. Step 5: Solve for x
    x = 149,475,797,978.84/438,179.71
  6. Step 6: Final answer
    x = 341,128.98

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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.