Home / 287,386.22-396,589.49-158,322.14

Finding the Fourth Proportional to 287,386.22, 396,589.49 and 158,322.14

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Solution

The fourth proportional to 287,386.22, 396,589.49 and 158,322.14 is: 218,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,386.22 : 396,589.49 = 158,322.14 : x
  2. Step 2: Convert to fraction form
    287,386.22/396,589.49 = 158,322.14/x
  3. Step 3: Cross multiply
    287,386.22x = 396,589.49 × 158,322.14
  4. Step 4: Simplify right side
    287,386.22x = 62,788,893,983.75
  5. Step 5: Solve for x
    x = 62,788,893,983.75/287,386.22
  6. Step 6: Final answer
    x = 218,482.62

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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.