Home / 229,884.12-317,237.04-129,282.12

Finding the Fourth Proportional to 229,884.12, 317,237.04 and 129,282.12

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Solution

The fourth proportional to 229,884.12, 317,237.04 and 129,282.12 is: 178,407.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,884.12 : 317,237.04 = 129,282.12 : x
  2. Step 2: Convert to fraction form
    229,884.12/317,237.04 = 129,282.12/x
  3. Step 3: Cross multiply
    229,884.12x = 317,237.04 × 129,282.12
  4. Step 4: Simplify right side
    229,884.12x = 41,013,077,073.72
  5. Step 5: Solve for x
    x = 41,013,077,073.72/229,884.12
  6. Step 6: Final answer
    x = 178,407.61

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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.