Home / 229,981.35-317,373.78-129,379.35

Finding the Fourth Proportional to 229,981.35, 317,373.78 and 129,379.35

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Solution

The fourth proportional to 229,981.35, 317,373.78 and 129,379.35 is: 178,543.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,981.35 : 317,373.78 = 129,379.35 : x
  2. Step 2: Convert to fraction form
    229,981.35/317,373.78 = 129,379.35/x
  3. Step 3: Cross multiply
    229,981.35x = 317,373.78 × 129,379.35
  4. Step 4: Simplify right side
    229,981.35x = 41,061,613,363.44
  5. Step 5: Solve for x
    x = 41,061,613,363.44/229,981.35
  6. Step 6: Final answer
    x = 178,543.23

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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.