Home / 287,441.22-396,681.15-160,116.87

Finding the Fourth Proportional to 287,441.22, 396,681.15 and 160,116.87

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Solution

The fourth proportional to 287,441.22, 396,681.15 and 160,116.87 is: 220,968.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,441.22 : 396,681.15 = 160,116.87 : x
  2. Step 2: Convert to fraction form
    287,441.22/396,681.15 = 160,116.87/x
  3. Step 3: Cross multiply
    287,441.22x = 396,681.15 × 160,116.87
  4. Step 4: Simplify right side
    287,441.22x = 63,515,344,126.00
  5. Step 5: Solve for x
    x = 63,515,344,126.00/287,441.22
  6. Step 6: Final answer
    x = 220,968.11

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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.