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Finding the Fourth Proportional to 218,954.80, 328,432.20 and 183,525.40

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Solution

The fourth proportional to 218,954.80, 328,432.20 and 183,525.40 is: 275,288.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,954.80 : 328,432.20 = 183,525.40 : x
  2. Step 2: Convert to fraction form
    218,954.80/328,432.20 = 183,525.40/x
  3. Step 3: Cross multiply
    218,954.80x = 328,432.20 × 183,525.40
  4. Step 4: Simplify right side
    218,954.80x = 60,275,650,877.88
  5. Step 5: Solve for x
    x = 60,275,650,877.88/218,954.80
  6. Step 6: Final answer
    x = 275,288.10

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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.