Home / 257,807.10-386,382.60-124,400.10

Finding the Fourth Proportional to 257,807.10, 386,382.60 and 124,400.10

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Solution

The fourth proportional to 257,807.10, 386,382.60 and 124,400.10 is: 186,441.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,807.10 : 386,382.60 = 124,400.10 : x
  2. Step 2: Convert to fraction form
    257,807.10/386,382.60 = 124,400.10/x
  3. Step 3: Cross multiply
    257,807.10x = 386,382.60 × 124,400.10
  4. Step 4: Simplify right side
    257,807.10x = 48,066,034,078.26
  5. Step 5: Solve for x
    x = 48,066,034,078.26/257,807.10
  6. Step 6: Final answer
    x = 186,441.86

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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.