Home / 279,786.35-386,105.23-152,461.95

Finding the Fourth Proportional to 279,786.35, 386,105.23 and 152,461.95

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Solution

The fourth proportional to 279,786.35, 386,105.23 and 152,461.95 is: 210,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,786.35 : 386,105.23 = 152,461.95 : x
  2. Step 2: Convert to fraction form
    279,786.35/386,105.23 = 152,461.95/x
  3. Step 3: Cross multiply
    279,786.35x = 386,105.23 × 152,461.95
  4. Step 4: Simplify right side
    279,786.35x = 58,866,355,013.68
  5. Step 5: Solve for x
    x = 58,866,355,013.68/279,786.35
  6. Step 6: Final answer
    x = 210,397.52

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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.