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Finding the Fourth Proportional to 425,407.78, 637,510.11 and 235,951.62

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Solution

The fourth proportional to 425,407.78, 637,510.11 and 235,951.62 is: 353,593.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,407.78 : 637,510.11 = 235,951.62 : x
  2. Step 2: Convert to fraction form
    425,407.78/637,510.11 = 235,951.62/x
  3. Step 3: Cross multiply
    425,407.78x = 637,510.11 × 235,951.62
  4. Step 4: Simplify right side
    425,407.78x = 150,421,543,220.88
  5. Step 5: Solve for x
    x = 150,421,543,220.88/425,407.78
  6. Step 6: Final answer
    x = 353,593.78

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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.