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Finding the Fourth Proportional to 347,672.70, 521,703.45 and 147,959.10

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Solution

The fourth proportional to 347,672.70, 521,703.45 and 147,959.10 is: 222,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,672.70 : 521,703.45 = 147,959.10 : x
  2. Step 2: Convert to fraction form
    347,672.70/521,703.45 = 147,959.10/x
  3. Step 3: Cross multiply
    347,672.70x = 521,703.45 × 147,959.10
  4. Step 4: Simplify right side
    347,672.70x = 77,190,772,928.90
  5. Step 5: Solve for x
    x = 77,190,772,928.90/347,672.70
  6. Step 6: Final answer
    x = 222,021.38

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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.