Home / 642,404.18-963,278.21-237,575.90

Finding the Fourth Proportional to 642,404.18, 963,278.21 and 237,575.90

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Solution

The fourth proportional to 642,404.18, 963,278.21 and 237,575.90 is: 356,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,404.18 : 963,278.21 = 237,575.90 : x
  2. Step 2: Convert to fraction form
    642,404.18/963,278.21 = 237,575.90/x
  3. Step 3: Cross multiply
    642,404.18x = 963,278.21 × 237,575.90
  4. Step 4: Simplify right side
    642,404.18x = 228,851,681,686.87
  5. Step 5: Solve for x
    x = 228,851,681,686.87/642,404.18
  6. Step 6: Final answer
    x = 356,242.52

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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.