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Finding the Fourth Proportional to 229,910.68, 317,273.64 and 129,308.68

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Solution

The fourth proportional to 229,910.68, 317,273.64 and 129,308.68 is: 178,444.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,910.68 : 317,273.64 = 129,308.68 : x
  2. Step 2: Convert to fraction form
    229,910.68/317,273.64 = 129,308.68/x
  3. Step 3: Cross multiply
    229,910.68x = 317,273.64 × 129,308.68
  4. Step 4: Simplify right side
    229,910.68x = 41,026,235,587.20
  5. Step 5: Solve for x
    x = 41,026,235,587.20/229,910.68
  6. Step 6: Final answer
    x = 178,444.24

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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.