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Finding the Fourth Proportional to 287,532.89, 396,798.04 and 158,476.04

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Solution

The fourth proportional to 287,532.89, 396,798.04 and 158,476.04 is: 218,698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,532.89 : 396,798.04 = 158,476.04 : x
  2. Step 2: Convert to fraction form
    287,532.89/396,798.04 = 158,476.04/x
  3. Step 3: Cross multiply
    287,532.89x = 396,798.04 × 158,476.04
  4. Step 4: Simplify right side
    287,532.89x = 62,882,983,993.05
  5. Step 5: Solve for x
    x = 62,882,983,993.05/287,532.89
  6. Step 6: Final answer
    x = 218,698.40

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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.