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Finding the Fourth Proportional to 199,594.60, 299,520.40 and 79,631.08

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Solution

The fourth proportional to 199,594.60, 299,520.40 and 79,631.08 is: 119,497.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,594.60 : 299,520.40 = 79,631.08 : x
  2. Step 2: Convert to fraction form
    199,594.60/299,520.40 = 79,631.08/x
  3. Step 3: Cross multiply
    199,594.60x = 299,520.40 × 79,631.08
  4. Step 4: Simplify right side
    199,594.60x = 23,851,132,934.03
  5. Step 5: Solve for x
    x = 23,851,132,934.03/199,594.60
  6. Step 6: Final answer
    x = 119,497.89

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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.