Home / 287,615.48-396,910.62-158,551.20

Finding the Fourth Proportional to 287,615.48, 396,910.62 and 158,551.20

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Solution

The fourth proportional to 287,615.48, 396,910.62 and 158,551.20 is: 218,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,615.48 : 396,910.62 = 158,551.20 : x
  2. Step 2: Convert to fraction form
    287,615.48/396,910.62 = 158,551.20/x
  3. Step 3: Cross multiply
    287,615.48x = 396,910.62 × 158,551.20
  4. Step 4: Simplify right side
    287,615.48x = 62,930,655,093.74
  5. Step 5: Solve for x
    x = 62,930,655,093.74/287,615.48
  6. Step 6: Final answer
    x = 218,801.35

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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.