Home / 287,448.34-396,652.98-160,121.20

Finding the Fourth Proportional to 287,448.34, 396,652.98 and 160,121.20

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Solution

The fourth proportional to 287,448.34, 396,652.98 and 160,121.20 is: 220,952.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,448.34 : 396,652.98 = 160,121.20 : x
  2. Step 2: Convert to fraction form
    287,448.34/396,652.98 = 160,121.20/x
  3. Step 3: Cross multiply
    287,448.34x = 396,652.98 × 160,121.20
  4. Step 4: Simplify right side
    287,448.34x = 63,512,551,141.18
  5. Step 5: Solve for x
    x = 63,512,551,141.18/287,448.34
  6. Step 6: Final answer
    x = 220,952.92

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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.