Home / 287,545.30-396,812.53-166,756.65

Finding the Fourth Proportional to 287,545.30, 396,812.53 and 166,756.65

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Solution

The fourth proportional to 287,545.30, 396,812.53 and 166,756.65 is: 230,124.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,545.30 : 396,812.53 = 166,756.65 : x
  2. Step 2: Convert to fraction form
    287,545.30/396,812.53 = 166,756.65/x
  3. Step 3: Cross multiply
    287,545.30x = 396,812.53 × 166,756.65
  4. Step 4: Simplify right side
    287,545.30x = 66,171,128,180.82
  5. Step 5: Solve for x
    x = 66,171,128,180.82/287,545.30
  6. Step 6: Final answer
    x = 230,124.19

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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.