Home / 287,446.60-396,688.56-160,122.24

Finding the Fourth Proportional to 287,446.60, 396,688.56 and 160,122.24

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Solution

The fourth proportional to 287,446.60, 396,688.56 and 160,122.24 is: 220,975.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,446.60 : 396,688.56 = 160,122.24 : x
  2. Step 2: Convert to fraction form
    287,446.60/396,688.56 = 160,122.24/x
  3. Step 3: Cross multiply
    287,446.60x = 396,688.56 × 160,122.24
  4. Step 4: Simplify right side
    287,446.60x = 63,518,660,809.57
  5. Step 5: Solve for x
    x = 63,518,660,809.57/287,446.60
  6. Step 6: Final answer
    x = 220,975.52

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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.