Home / 229,885.22-317,239.53-129,281.06

Finding the Fourth Proportional to 229,885.22, 317,239.53 and 129,281.06

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Solution

The fourth proportional to 229,885.22, 317,239.53 and 129,281.06 is: 178,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,885.22 : 317,239.53 = 129,281.06 : x
  2. Step 2: Convert to fraction form
    229,885.22/317,239.53 = 129,281.06/x
  3. Step 3: Cross multiply
    229,885.22x = 317,239.53 × 129,281.06
  4. Step 4: Simplify right side
    229,885.22x = 41,013,062,712.30
  5. Step 5: Solve for x
    x = 41,013,062,712.30/229,885.22
  6. Step 6: Final answer
    x = 178,406.70

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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.