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Finding the Fourth Proportional to 535,488.96, 802,721.22 and 198,439.08

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Solution

The fourth proportional to 535,488.96, 802,721.22 and 198,439.08 is: 297,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,488.96 : 802,721.22 = 198,439.08 : x
  2. Step 2: Convert to fraction form
    535,488.96/802,721.22 = 198,439.08/x
  3. Step 3: Cross multiply
    535,488.96x = 802,721.22 × 198,439.08
  4. Step 4: Simplify right side
    535,488.96x = 159,291,260,393.28
  5. Step 5: Solve for x
    x = 159,291,260,393.28/535,488.96
  6. Step 6: Final answer
    x = 297,468.80

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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.