Home / 287,388.32-396,580.20-158,301.50

Finding the Fourth Proportional to 287,388.32, 396,580.20 and 158,301.50

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Solution

The fourth proportional to 287,388.32, 396,580.20 and 158,301.50 is: 218,447.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,388.32 : 396,580.20 = 158,301.50 : x
  2. Step 2: Convert to fraction form
    287,388.32/396,580.20 = 158,301.50/x
  3. Step 3: Cross multiply
    287,388.32x = 396,580.20 × 158,301.50
  4. Step 4: Simplify right side
    287,388.32x = 62,779,240,530.30
  5. Step 5: Solve for x
    x = 62,779,240,530.30/287,388.32
  6. Step 6: Final answer
    x = 218,447.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.