Home / 287,114.72-396,210.03-159,787.58

Finding the Fourth Proportional to 287,114.72, 396,210.03 and 159,787.58

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Solution

The fourth proportional to 287,114.72, 396,210.03 and 159,787.58 is: 220,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,114.72 : 396,210.03 = 159,787.58 : x
  2. Step 2: Convert to fraction form
    287,114.72/396,210.03 = 159,787.58/x
  3. Step 3: Cross multiply
    287,114.72x = 396,210.03 × 159,787.58
  4. Step 4: Simplify right side
    287,114.72x = 63,309,441,865.43
  5. Step 5: Solve for x
    x = 63,309,441,865.43/287,114.72
  6. Step 6: Final answer
    x = 220,502.25

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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.