Home / 287,269.16-396,434.18-159,947.48

Finding the Fourth Proportional to 287,269.16, 396,434.18 and 159,947.48

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Solution

The fourth proportional to 287,269.16, 396,434.18 and 159,947.48 is: 220,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,269.16 : 396,434.18 = 159,947.48 : x
  2. Step 2: Convert to fraction form
    287,269.16/396,434.18 = 159,947.48/x
  3. Step 3: Cross multiply
    287,269.16x = 396,434.18 × 159,947.48
  4. Step 4: Simplify right side
    287,269.16x = 63,408,649,467.82
  5. Step 5: Solve for x
    x = 63,408,649,467.82/287,269.16
  6. Step 6: Final answer
    x = 220,729.06

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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.