Home / 257,829.10-386,743.65-254,329.90

Finding the Fourth Proportional to 257,829.10, 386,743.65 and 254,329.90

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Solution

The fourth proportional to 257,829.10, 386,743.65 and 254,329.90 is: 381,494.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,829.10 : 386,743.65 = 254,329.90 : x
  2. Step 2: Convert to fraction form
    257,829.10/386,743.65 = 254,329.90/x
  3. Step 3: Cross multiply
    257,829.10x = 386,743.65 × 254,329.90
  4. Step 4: Simplify right side
    257,829.10x = 98,360,473,830.14
  5. Step 5: Solve for x
    x = 98,360,473,830.14/257,829.10
  6. Step 6: Final answer
    x = 381,494.85

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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.