Home / 287,342.17-396,503.81-160,029.61

Finding the Fourth Proportional to 287,342.17, 396,503.81 and 160,029.61

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Solution

The fourth proportional to 287,342.17, 396,503.81 and 160,029.61 is: 220,825.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,342.17 : 396,503.81 = 160,029.61 : x
  2. Step 2: Convert to fraction form
    287,342.17/396,503.81 = 160,029.61/x
  3. Step 3: Cross multiply
    287,342.17x = 396,503.81 × 160,029.61
  4. Step 4: Simplify right side
    287,342.17x = 63,452,348,886.52
  5. Step 5: Solve for x
    x = 63,452,348,886.52/287,342.17
  6. Step 6: Final answer
    x = 220,825.05

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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.