Home / 287,618.16-396,915.06-160,301.97

Finding the Fourth Proportional to 287,618.16, 396,915.06 and 160,301.97

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Solution

The fourth proportional to 287,618.16, 396,915.06 and 160,301.97 is: 221,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,618.16 : 396,915.06 = 160,301.97 : x
  2. Step 2: Convert to fraction form
    287,618.16/396,915.06 = 160,301.97/x
  3. Step 3: Cross multiply
    287,618.16x = 396,915.06 × 160,301.97
  4. Step 4: Simplify right side
    287,618.16x = 63,626,266,040.67
  5. Step 5: Solve for x
    x = 63,626,266,040.67/287,618.16
  6. Step 6: Final answer
    x = 221,217.83

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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.