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Finding the Fourth Proportional to 243,337.80, 364,848.30 and 218,454.60

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Solution

The fourth proportional to 243,337.80, 364,848.30 and 218,454.60 is: 327,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,337.80 : 364,848.30 = 218,454.60 : x
  2. Step 2: Convert to fraction form
    243,337.80/364,848.30 = 218,454.60/x
  3. Step 3: Cross multiply
    243,337.80x = 364,848.30 × 218,454.60
  4. Step 4: Simplify right side
    243,337.80x = 79,702,789,437.18
  5. Step 5: Solve for x
    x = 79,702,789,437.18/243,337.80
  6. Step 6: Final answer
    x = 327,539.70

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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.