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Finding the Fourth Proportional to 218,081.85, 326,597.88 and 147,747.93

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Solution

The fourth proportional to 218,081.85, 326,597.88 and 147,747.93 is: 221,266.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,081.85 : 326,597.88 = 147,747.93 : x
  2. Step 2: Convert to fraction form
    218,081.85/326,597.88 = 147,747.93/x
  3. Step 3: Cross multiply
    218,081.85x = 326,597.88 × 147,747.93
  4. Step 4: Simplify right side
    218,081.85x = 48,254,160,712.39
  5. Step 5: Solve for x
    x = 48,254,160,712.39/218,081.85
  6. Step 6: Final answer
    x = 221,266.28

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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.