Home / 205,233.40-307,882.50-86,905.48

Finding the Fourth Proportional to 205,233.40, 307,882.50 and 86,905.48

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Solution

The fourth proportional to 205,233.40, 307,882.50 and 86,905.48 is: 130,371.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,233.40 : 307,882.50 = 86,905.48 : x
  2. Step 2: Convert to fraction form
    205,233.40/307,882.50 = 86,905.48/x
  3. Step 3: Cross multiply
    205,233.40x = 307,882.50 × 86,905.48
  4. Step 4: Simplify right side
    205,233.40x = 26,756,676,446.10
  5. Step 5: Solve for x
    x = 26,756,676,446.10/205,233.40
  6. Step 6: Final answer
    x = 130,371.94

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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.