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Finding the Fourth Proportional to 480,089.58, 720,125.10 and 143,358.39

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Solution

The fourth proportional to 480,089.58, 720,125.10 and 143,358.39 is: 215,034.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,089.58 : 720,125.10 = 143,358.39 : x
  2. Step 2: Convert to fraction form
    480,089.58/720,125.10 = 143,358.39/x
  3. Step 3: Cross multiply
    480,089.58x = 720,125.10 × 143,358.39
  4. Step 4: Simplify right side
    480,089.58x = 103,235,974,934.59
  5. Step 5: Solve for x
    x = 103,235,974,934.59/480,089.58
  6. Step 6: Final answer
    x = 215,034.82

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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.