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Finding the Fourth Proportional to 158,458, 237,390.36 and 79,479.76

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Solution

The fourth proportional to 158,458, 237,390.36 and 79,479.76 is: 119,070.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,458 : 237,390.36 = 79,479.76 : x
  2. Step 2: Convert to fraction form
    158,458/237,390.36 = 79,479.76/x
  3. Step 3: Cross multiply
    158,458x = 237,390.36 × 79,479.76
  4. Step 4: Simplify right side
    158,458x = 18,867,728,839.11
  5. Step 5: Solve for x
    x = 18,867,728,839.11/158,458
  6. Step 6: Final answer
    x = 119,070.85

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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.