Home / 229,960.10-317,344.46-129,358.10

Finding the Fourth Proportional to 229,960.10, 317,344.46 and 129,358.10

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Solution

The fourth proportional to 229,960.10, 317,344.46 and 129,358.10 is: 178,513.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,960.10 : 317,344.46 = 129,358.10 : x
  2. Step 2: Convert to fraction form
    229,960.10/317,344.46 = 129,358.10/x
  3. Step 3: Cross multiply
    229,960.10x = 317,344.46 × 129,358.10
  4. Step 4: Simplify right side
    229,960.10x = 41,051,076,391.13
  5. Step 5: Solve for x
    x = 41,051,076,391.13/229,960.10
  6. Step 6: Final answer
    x = 178,513.91

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1.5x scale

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.