Home / 457,180.18-685,815.42-157,621.38

Finding the Fourth Proportional to 457,180.18, 685,815.42 and 157,621.38

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Solution

The fourth proportional to 457,180.18, 685,815.42 and 157,621.38 is: 236,447.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,180.18 : 685,815.42 = 157,621.38 : x
  2. Step 2: Convert to fraction form
    457,180.18/685,815.42 = 157,621.38/x
  3. Step 3: Cross multiply
    457,180.18x = 685,815.42 × 157,621.38
  4. Step 4: Simplify right side
    457,180.18x = 108,099,172,925.68
  5. Step 5: Solve for x
    x = 108,099,172,925.68/457,180.18
  6. Step 6: Final answer
    x = 236,447.64

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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.