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Finding the Fourth Proportional to 298,681.50, 447,753.24 and 109,008.79

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Solution

The fourth proportional to 298,681.50, 447,753.24 and 109,008.79 is: 163,415.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,681.50 : 447,753.24 = 109,008.79 : x
  2. Step 2: Convert to fraction form
    298,681.50/447,753.24 = 109,008.79/x
  3. Step 3: Cross multiply
    298,681.50x = 447,753.24 × 109,008.79
  4. Step 4: Simplify right side
    298,681.50x = 48,809,037,791.60
  5. Step 5: Solve for x
    x = 48,809,037,791.60/298,681.50
  6. Step 6: Final answer
    x = 163,415.00

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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.