Home / 229,814.48-317,156.04-129,218.96

Finding the Fourth Proportional to 229,814.48, 317,156.04 and 129,218.96

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Solution

The fourth proportional to 229,814.48, 317,156.04 and 129,218.96 is: 178,328.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,814.48 : 317,156.04 = 129,218.96 : x
  2. Step 2: Convert to fraction form
    229,814.48/317,156.04 = 129,218.96/x
  3. Step 3: Cross multiply
    229,814.48x = 317,156.04 × 129,218.96
  4. Step 4: Simplify right side
    229,814.48x = 40,982,573,646.52
  5. Step 5: Solve for x
    x = 40,982,573,646.52/229,814.48
  6. Step 6: Final answer
    x = 178,328.94

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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.