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Finding the Fourth Proportional to 347,059.68, 520,402.74 and 187,221.43

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Solution

The fourth proportional to 347,059.68, 520,402.74 and 187,221.43 is: 280,731.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,059.68 : 520,402.74 = 187,221.43 : x
  2. Step 2: Convert to fraction form
    347,059.68/520,402.74 = 187,221.43/x
  3. Step 3: Cross multiply
    347,059.68x = 520,402.74 × 187,221.43
  4. Step 4: Simplify right side
    347,059.68x = 97,430,545,158.72
  5. Step 5: Solve for x
    x = 97,430,545,158.72/347,059.68
  6. Step 6: Final answer
    x = 280,731.39

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1.5x scale

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.