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Finding the Fourth Proportional to 287,126.70, 396,230.88 and 159,802.35

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Solution

The fourth proportional to 287,126.70, 396,230.88 and 159,802.35 is: 220,525.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,126.70 : 396,230.88 = 159,802.35 : x
  2. Step 2: Convert to fraction form
    287,126.70/396,230.88 = 159,802.35/x
  3. Step 3: Cross multiply
    287,126.70x = 396,230.88 × 159,802.35
  4. Step 4: Simplify right side
    287,126.70x = 63,318,625,766.57
  5. Step 5: Solve for x
    x = 63,318,625,766.57/287,126.70
  6. Step 6: Final answer
    x = 220,525.04

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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.