Home / 279,869.58-386,216.10-152,545.68

Finding the Fourth Proportional to 279,869.58, 386,216.10 and 152,545.68

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Solution

The fourth proportional to 279,869.58, 386,216.10 and 152,545.68 is: 210,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,869.58 : 386,216.10 = 152,545.68 : x
  2. Step 2: Convert to fraction form
    279,869.58/386,216.10 = 152,545.68/x
  3. Step 3: Cross multiply
    279,869.58x = 386,216.10 × 152,545.68
  4. Step 4: Simplify right side
    279,869.58x = 58,915,597,601.45
  5. Step 5: Solve for x
    x = 58,915,597,601.45/279,869.58
  6. Step 6: Final answer
    x = 210,510.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.