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Finding the Fourth Proportional to 323,468.19, 485,276.10 and 98,860.56

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Solution

The fourth proportional to 323,468.19, 485,276.10 and 98,860.56 is: 148,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,468.19 : 485,276.10 = 98,860.56 : x
  2. Step 2: Convert to fraction form
    323,468.19/485,276.10 = 98,860.56/x
  3. Step 3: Cross multiply
    323,468.19x = 485,276.10 × 98,860.56
  4. Step 4: Simplify right side
    323,468.19x = 47,974,667,000.62
  5. Step 5: Solve for x
    x = 47,974,667,000.62/323,468.19
  6. Step 6: Final answer
    x = 148,313.40

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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.