Home / 287,160.32-396,275.28-159,828.32

Finding the Fourth Proportional to 287,160.32, 396,275.28 and 159,828.32

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Solution

The fourth proportional to 287,160.32, 396,275.28 and 159,828.32 is: 220,559.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,160.32 : 396,275.28 = 159,828.32 : x
  2. Step 2: Convert to fraction form
    287,160.32/396,275.28 = 159,828.32/x
  3. Step 3: Cross multiply
    287,160.32x = 396,275.28 × 159,828.32
  4. Step 4: Simplify right side
    287,160.32x = 63,336,012,259.93
  5. Step 5: Solve for x
    x = 63,336,012,259.93/287,160.32
  6. Step 6: Final answer
    x = 220,559.76

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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.