Home / 287,345.17-396,507.95-160,032.61

Finding the Fourth Proportional to 287,345.17, 396,507.95 and 160,032.61

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Solution

The fourth proportional to 287,345.17, 396,507.95 and 160,032.61 is: 220,829.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,345.17 : 396,507.95 = 160,032.61 : x
  2. Step 2: Convert to fraction form
    287,345.17/396,507.95 = 160,032.61/x
  3. Step 3: Cross multiply
    287,345.17x = 396,507.95 × 160,032.61
  4. Step 4: Simplify right side
    287,345.17x = 63,454,202,124.25
  5. Step 5: Solve for x
    x = 63,454,202,124.25/287,345.17
  6. Step 6: Final answer
    x = 220,829.19

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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.