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Finding the Fourth Proportional to 218,803.60, 328,205.40 and 204,041.35

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Solution

The fourth proportional to 218,803.60, 328,205.40 and 204,041.35 is: 306,062.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,803.60 : 328,205.40 = 204,041.35 : x
  2. Step 2: Convert to fraction form
    218,803.60/328,205.40 = 204,041.35/x
  3. Step 3: Cross multiply
    218,803.60x = 328,205.40 × 204,041.35
  4. Step 4: Simplify right side
    218,803.60x = 66,967,472,893.29
  5. Step 5: Solve for x
    x = 66,967,472,893.29/218,803.60
  6. Step 6: Final answer
    x = 306,062.03

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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.