Home / 287,509.17-396,765.38-158,452.37

Finding the Fourth Proportional to 287,509.17, 396,765.38 and 158,452.37

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Solution

The fourth proportional to 287,509.17, 396,765.38 and 158,452.37 is: 218,665.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,509.17 : 396,765.38 = 158,452.37 : x
  2. Step 2: Convert to fraction form
    287,509.17/396,765.38 = 158,452.37/x
  3. Step 3: Cross multiply
    287,509.17x = 396,765.38 × 158,452.37
  4. Step 4: Simplify right side
    287,509.17x = 62,868,412,018.86
  5. Step 5: Solve for x
    x = 62,868,412,018.86/287,509.17
  6. Step 6: Final answer
    x = 218,665.76

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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.