Home / 487,439.40-730,979.96-167,500.55

Finding the Fourth Proportional to 487,439.40, 730,979.96 and 167,500.55

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Solution

The fourth proportional to 487,439.40, 730,979.96 and 167,500.55 is: 251,189.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,439.40 : 730,979.96 = 167,500.55 : x
  2. Step 2: Convert to fraction form
    487,439.40/730,979.96 = 167,500.55/x
  3. Step 3: Cross multiply
    487,439.40x = 730,979.96 × 167,500.55
  4. Step 4: Simplify right side
    487,439.40x = 122,439,540,846.58
  5. Step 5: Solve for x
    x = 122,439,540,846.58/487,439.40
  6. Step 6: Final answer
    x = 251,189.26

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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.