Home / 287,437.60-396,676.14-160,113.25

Finding the Fourth Proportional to 287,437.60, 396,676.14 and 160,113.25

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Solution

The fourth proportional to 287,437.60, 396,676.14 and 160,113.25 is: 220,963.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,437.60 : 396,676.14 = 160,113.25 : x
  2. Step 2: Convert to fraction form
    287,437.60/396,676.14 = 160,113.25/x
  3. Step 3: Cross multiply
    287,437.60x = 396,676.14 × 160,113.25
  4. Step 4: Simplify right side
    287,437.60x = 63,513,103,989.47
  5. Step 5: Solve for x
    x = 63,513,103,989.47/287,437.60
  6. Step 6: Final answer
    x = 220,963.11

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1.5x scale

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.