Home / 458,346.40-687,354.88-158,746.24

Finding the Fourth Proportional to 458,346.40, 687,354.88 and 158,746.24

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Solution

The fourth proportional to 458,346.40, 687,354.88 and 158,746.24 is: 238,062.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,346.40 : 687,354.88 = 158,746.24 : x
  2. Step 2: Convert to fraction form
    458,346.40/687,354.88 = 158,746.24/x
  3. Step 3: Cross multiply
    458,346.40x = 687,354.88 × 158,746.24
  4. Step 4: Simplify right side
    458,346.40x = 109,115,002,745.65
  5. Step 5: Solve for x
    x = 109,115,002,745.65/458,346.40
  6. Step 6: Final answer
    x = 238,062.31

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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.