Home / 287,264.57-396,437.36-159,940.13

Finding the Fourth Proportional to 287,264.57, 396,437.36 and 159,940.13

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Solution

The fourth proportional to 287,264.57, 396,437.36 and 159,940.13 is: 220,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,264.57 : 396,437.36 = 159,940.13 : x
  2. Step 2: Convert to fraction form
    287,264.57/396,437.36 = 159,940.13/x
  3. Step 3: Cross multiply
    287,264.57x = 396,437.36 × 159,940.13
  4. Step 4: Simplify right side
    287,264.57x = 63,406,240,113.37
  5. Step 5: Solve for x
    x = 63,406,240,113.37/287,264.57
  6. Step 6: Final answer
    x = 220,724.20

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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.