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Finding the Fourth Proportional to 230,699.52, 318,359.04 and 130,106.88

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Solution

The fourth proportional to 230,699.52, 318,359.04 and 130,106.88 is: 179,543.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,699.52 : 318,359.04 = 130,106.88 : x
  2. Step 2: Convert to fraction form
    230,699.52/318,359.04 = 130,106.88/x
  3. Step 3: Cross multiply
    230,699.52x = 318,359.04 × 130,106.88
  4. Step 4: Simplify right side
    230,699.52x = 41,420,701,414.20
  5. Step 5: Solve for x
    x = 41,420,701,414.20/230,699.52
  6. Step 6: Final answer
    x = 179,543.94

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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.