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Finding the Fourth Proportional to 408,020.60, 611,609.70 and 183,488.60

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Solution

The fourth proportional to 408,020.60, 611,609.70 and 183,488.60 is: 275,043.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,020.60 : 611,609.70 = 183,488.60 : x
  2. Step 2: Convert to fraction form
    408,020.60/611,609.70 = 183,488.60/x
  3. Step 3: Cross multiply
    408,020.60x = 611,609.70 × 183,488.60
  4. Step 4: Simplify right side
    408,020.60x = 112,223,407,599.42
  5. Step 5: Solve for x
    x = 112,223,407,599.42/408,020.60
  6. Step 6: Final answer
    x = 275,043.48

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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.