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Finding the Fourth Proportional to 408,479.36, 612,388.56 and 183,675.20

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Solution

The fourth proportional to 408,479.36, 612,388.56 and 183,675.20 is: 275,364.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,479.36 : 612,388.56 = 183,675.20 : x
  2. Step 2: Convert to fraction form
    408,479.36/612,388.56 = 183,675.20/x
  3. Step 3: Cross multiply
    408,479.36x = 612,388.56 × 183,675.20
  4. Step 4: Simplify right side
    408,479.36x = 112,480,591,235.71
  5. Step 5: Solve for x
    x = 112,480,591,235.71/408,479.36
  6. Step 6: Final answer
    x = 275,364.20

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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.