Home / 386,187.12-579,281.15-161,424.59

Finding the Fourth Proportional to 386,187.12, 579,281.15 and 161,424.59

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Solution

The fourth proportional to 386,187.12, 579,281.15 and 161,424.59 is: 242,137.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,187.12 : 579,281.15 = 161,424.59 : x
  2. Step 2: Convert to fraction form
    386,187.12/579,281.15 = 161,424.59/x
  3. Step 3: Cross multiply
    386,187.12x = 579,281.15 × 161,424.59
  4. Step 4: Simplify right side
    386,187.12x = 93,510,218,429.95
  5. Step 5: Solve for x
    x = 93,510,218,429.95/386,187.12
  6. Step 6: Final answer
    x = 242,137.07

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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.