Home / 354,584.39-531,805.08-129,868.10

Finding the Fourth Proportional to 354,584.39, 531,805.08 and 129,868.10

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Solution

The fourth proportional to 354,584.39, 531,805.08 and 129,868.10 is: 194,775.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,584.39 : 531,805.08 = 129,868.10 : x
  2. Step 2: Convert to fraction form
    354,584.39/531,805.08 = 129,868.10/x
  3. Step 3: Cross multiply
    354,584.39x = 531,805.08 × 129,868.10
  4. Step 4: Simplify right side
    354,584.39x = 69,064,516,639.46
  5. Step 5: Solve for x
    x = 69,064,516,639.46/354,584.39
  6. Step 6: Final answer
    x = 194,775.96

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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.