Home / 287,527.05-396,789.93-158,470.13

Finding the Fourth Proportional to 287,527.05, 396,789.93 and 158,470.13

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Solution

The fourth proportional to 287,527.05, 396,789.93 and 158,470.13 is: 218,690.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,527.05 : 396,789.93 = 158,470.13 : x
  2. Step 2: Convert to fraction form
    287,527.05/396,789.93 = 158,470.13/x
  3. Step 3: Cross multiply
    287,527.05x = 396,789.93 × 158,470.13
  4. Step 4: Simplify right side
    287,527.05x = 62,879,349,805.84
  5. Step 5: Solve for x
    x = 62,879,349,805.84/287,527.05
  6. Step 6: Final answer
    x = 218,690.21

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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.