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Finding the Fourth Proportional to 408,040.60, 612,262.05 and 183,559.90

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Solution

The fourth proportional to 408,040.60, 612,262.05 and 183,559.90 is: 275,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,040.60 : 612,262.05 = 183,559.90 : x
  2. Step 2: Convert to fraction form
    408,040.60/612,262.05 = 183,559.90/x
  3. Step 3: Cross multiply
    408,040.60x = 612,262.05 × 183,559.90
  4. Step 4: Simplify right side
    408,040.60x = 112,386,760,671.80
  5. Step 5: Solve for x
    x = 112,386,760,671.80/408,040.60
  6. Step 6: Final answer
    x = 275,430.34

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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.