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Finding the Fourth Proportional to 642,404.05, 963,278.02 and 237,575.77

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Solution

The fourth proportional to 642,404.05, 963,278.02 and 237,575.77 is: 356,242.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,404.05 : 963,278.02 = 237,575.77 : x
  2. Step 2: Convert to fraction form
    642,404.05/963,278.02 = 237,575.77/x
  3. Step 3: Cross multiply
    642,404.05x = 963,278.02 × 237,575.77
  4. Step 4: Simplify right side
    642,404.05x = 228,851,517,325.58
  5. Step 5: Solve for x
    x = 228,851,517,325.58/642,404.05
  6. Step 6: Final answer
    x = 356,242.33

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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.