Home / 287,547.18-396,815.12-166,758.52

Finding the Fourth Proportional to 287,547.18, 396,815.12 and 166,758.52

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Solution

The fourth proportional to 287,547.18, 396,815.12 and 166,758.52 is: 230,126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,547.18 : 396,815.12 = 166,758.52 : x
  2. Step 2: Convert to fraction form
    287,547.18/396,815.12 = 166,758.52/x
  3. Step 3: Cross multiply
    287,547.18x = 396,815.12 × 166,758.52
  4. Step 4: Simplify right side
    287,547.18x = 66,172,302,124.82
  5. Step 5: Solve for x
    x = 66,172,302,124.82/287,547.18
  6. Step 6: Final answer
    x = 230,126.76

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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.