Home / 287,199.15-396,324.14-159,872.01

Finding the Fourth Proportional to 287,199.15, 396,324.14 and 159,872.01

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Solution

The fourth proportional to 287,199.15, 396,324.14 and 159,872.01 is: 220,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,199.15 : 396,324.14 = 159,872.01 : x
  2. Step 2: Convert to fraction form
    287,199.15/396,324.14 = 159,872.01/x
  3. Step 3: Cross multiply
    287,199.15x = 396,324.14 × 159,872.01
  4. Step 4: Simplify right side
    287,199.15x = 63,361,136,073.96
  5. Step 5: Solve for x
    x = 63,361,136,073.96/287,199.15
  6. Step 6: Final answer
    x = 220,617.42

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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.