Home / 287,514.59-396,772.83-158,457.76

Finding the Fourth Proportional to 287,514.59, 396,772.83 and 158,457.76

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Solution

The fourth proportional to 287,514.59, 396,772.83 and 158,457.76 is: 218,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,514.59 : 396,772.83 = 158,457.76 : x
  2. Step 2: Convert to fraction form
    287,514.59/396,772.83 = 158,457.76/x
  3. Step 3: Cross multiply
    287,514.59x = 396,772.83 × 158,457.76
  4. Step 4: Simplify right side
    287,514.59x = 62,871,732,878.73
  5. Step 5: Solve for x
    x = 62,871,732,878.73/287,514.59
  6. Step 6: Final answer
    x = 218,673.19

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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.