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Finding the Fourth Proportional to 347,787.09, 521,001.47 and 239,697.12

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Solution

The fourth proportional to 347,787.09, 521,001.47 and 239,697.12 is: 359,077.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,787.09 : 521,001.47 = 239,697.12 : x
  2. Step 2: Convert to fraction form
    347,787.09/521,001.47 = 239,697.12/x
  3. Step 3: Cross multiply
    347,787.09x = 521,001.47 × 239,697.12
  4. Step 4: Simplify right side
    347,787.09x = 124,882,550,676.28
  5. Step 5: Solve for x
    x = 124,882,550,676.28/347,787.09
  6. Step 6: Final answer
    x = 359,077.59

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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.