Home / 229,930.74-317,301.17-129,328.50

Finding the Fourth Proportional to 229,930.74, 317,301.17 and 129,328.50

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Solution

The fourth proportional to 229,930.74, 317,301.17 and 129,328.50 is: 178,471.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,930.74 : 317,301.17 = 129,328.50 : x
  2. Step 2: Convert to fraction form
    229,930.74/317,301.17 = 129,328.50/x
  3. Step 3: Cross multiply
    229,930.74x = 317,301.17 × 129,328.50
  4. Step 4: Simplify right side
    229,930.74x = 41,036,084,364.35
  5. Step 5: Solve for x
    x = 41,036,084,364.35/229,930.74
  6. Step 6: Final answer
    x = 178,471.50

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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.