Home / 287,345.48-396,508.38-160,032.92

Finding the Fourth Proportional to 287,345.48, 396,508.38 and 160,032.92

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Solution

The fourth proportional to 287,345.48, 396,508.38 and 160,032.92 is: 220,829.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,345.48 : 396,508.38 = 160,032.92 : x
  2. Step 2: Convert to fraction form
    287,345.48/396,508.38 = 160,032.92/x
  3. Step 3: Cross multiply
    287,345.48x = 396,508.38 × 160,032.92
  4. Step 4: Simplify right side
    287,345.48x = 63,454,393,855.87
  5. Step 5: Solve for x
    x = 63,454,393,855.87/287,345.48
  6. Step 6: Final answer
    x = 220,829.62

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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.