Home / 257,948.94-386,948.02-100,189.70

Finding the Fourth Proportional to 257,948.94, 386,948.02 and 100,189.70

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Solution

The fourth proportional to 257,948.94, 386,948.02 and 100,189.70 is: 150,294.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,948.94 : 386,948.02 = 100,189.70 : x
  2. Step 2: Convert to fraction form
    257,948.94/386,948.02 = 100,189.70/x
  3. Step 3: Cross multiply
    257,948.94x = 386,948.02 × 100,189.70
  4. Step 4: Simplify right side
    257,948.94x = 38,768,206,039.39
  5. Step 5: Solve for x
    x = 38,768,206,039.39/257,948.94
  6. Step 6: Final answer
    x = 150,294.11

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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.