Home / 287,443.08-396,671.38-158,383.35

Finding the Fourth Proportional to 287,443.08, 396,671.38 and 158,383.35

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Solution

The fourth proportional to 287,443.08, 396,671.38 and 158,383.35 is: 218,568.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,443.08 : 396,671.38 = 158,383.35 : x
  2. Step 2: Convert to fraction form
    287,443.08/396,671.38 = 158,383.35/x
  3. Step 3: Cross multiply
    287,443.08x = 396,671.38 × 158,383.35
  4. Step 4: Simplify right side
    287,443.08x = 62,826,141,617.56
  5. Step 5: Solve for x
    x = 62,826,141,617.56/287,443.08
  6. Step 6: Final answer
    x = 218,568.98

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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.