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Finding the Fourth Proportional to 357,649.58, 536,333.49 and 129,891.35

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Solution

The fourth proportional to 357,649.58, 536,333.49 and 129,891.35 is: 194,785.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,649.58 : 536,333.49 = 129,891.35 : x
  2. Step 2: Convert to fraction form
    357,649.58/536,333.49 = 129,891.35/x
  3. Step 3: Cross multiply
    357,649.58x = 536,333.49 × 129,891.35
  4. Step 4: Simplify right side
    357,649.58x = 69,665,078,384.64
  5. Step 5: Solve for x
    x = 69,665,078,384.64/357,649.58
  6. Step 6: Final answer
    x = 194,785.86

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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.