Home / 287,363.20-396,573.52-160,038.80

Finding the Fourth Proportional to 287,363.20, 396,573.52 and 160,038.80

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Solution

The fourth proportional to 287,363.20, 396,573.52 and 160,038.80 is: 220,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,363.20 : 396,573.52 = 160,038.80 : x
  2. Step 2: Convert to fraction form
    287,363.20/396,573.52 = 160,038.80/x
  3. Step 3: Cross multiply
    287,363.20x = 396,573.52 × 160,038.80
  4. Step 4: Simplify right side
    287,363.20x = 63,467,150,252.58
  5. Step 5: Solve for x
    x = 63,467,150,252.58/287,363.20
  6. Step 6: Final answer
    x = 220,860.40

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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.