Home / 287,542.65-396,831.68-158,504.07

Finding the Fourth Proportional to 287,542.65, 396,831.68 and 158,504.07

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Solution

The fourth proportional to 287,542.65, 396,831.68 and 158,504.07 is: 218,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,542.65 : 396,831.68 = 158,504.07 : x
  2. Step 2: Convert to fraction form
    287,542.65/396,831.68 = 158,504.07/x
  3. Step 3: Cross multiply
    287,542.65x = 396,831.68 × 158,504.07
  4. Step 4: Simplify right side
    287,542.65x = 62,899,436,384.94
  5. Step 5: Solve for x
    x = 62,899,436,384.94/287,542.65
  6. Step 6: Final answer
    x = 218,748.20

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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.