Home / 388,934.30-583,499.86-108,451.55

Finding the Fourth Proportional to 388,934.30, 583,499.86 and 108,451.55

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Solution

The fourth proportional to 388,934.30, 583,499.86 and 108,451.55 is: 162,704.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,934.30 : 583,499.86 = 108,451.55 : x
  2. Step 2: Convert to fraction form
    388,934.30/583,499.86 = 108,451.55/x
  3. Step 3: Cross multiply
    388,934.30x = 583,499.86 × 108,451.55
  4. Step 4: Simplify right side
    388,934.30x = 63,281,462,757.26
  5. Step 5: Solve for x
    x = 63,281,462,757.26/388,934.30
  6. Step 6: Final answer
    x = 162,704.76

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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.