Home / 257,926.80-386,890.20-152,691.60

Finding the Fourth Proportional to 257,926.80, 386,890.20 and 152,691.60

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Solution

The fourth proportional to 257,926.80, 386,890.20 and 152,691.60 is: 229,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,926.80 : 386,890.20 = 152,691.60 : x
  2. Step 2: Convert to fraction form
    257,926.80/386,890.20 = 152,691.60/x
  3. Step 3: Cross multiply
    257,926.80x = 386,890.20 × 152,691.60
  4. Step 4: Simplify right side
    257,926.80x = 59,074,883,662.32
  5. Step 5: Solve for x
    x = 59,074,883,662.32/257,926.80
  6. Step 6: Final answer
    x = 229,037.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.