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Finding the Fourth Proportional to 497,218.80, 745,828.20 and 217,282.80

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Solution

The fourth proportional to 497,218.80, 745,828.20 and 217,282.80 is: 325,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,218.80 : 745,828.20 = 217,282.80 : x
  2. Step 2: Convert to fraction form
    497,218.80/745,828.20 = 217,282.80/x
  3. Step 3: Cross multiply
    497,218.80x = 745,828.20 × 217,282.80
  4. Step 4: Simplify right side
    497,218.80x = 162,055,639,614.96
  5. Step 5: Solve for x
    x = 162,055,639,614.96/497,218.80
  6. Step 6: Final answer
    x = 325,924.20

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.