Home / 287,451.34-396,657.12-160,124.20

Finding the Fourth Proportional to 287,451.34, 396,657.12 and 160,124.20

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Solution

The fourth proportional to 287,451.34, 396,657.12 and 160,124.20 is: 220,957.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,451.34 : 396,657.12 = 160,124.20 : x
  2. Step 2: Convert to fraction form
    287,451.34/396,657.12 = 160,124.20/x
  3. Step 3: Cross multiply
    287,451.34x = 396,657.12 × 160,124.20
  4. Step 4: Simplify right side
    287,451.34x = 63,514,404,014.30
  5. Step 5: Solve for x
    x = 63,514,404,014.30/287,451.34
  6. Step 6: Final answer
    x = 220,957.06

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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.