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Finding the Fourth Proportional to 323,941.95, 486,006.28 and 99,335.50

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Solution

The fourth proportional to 323,941.95, 486,006.28 and 99,335.50 is: 149,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,941.95 : 486,006.28 = 99,335.50 : x
  2. Step 2: Convert to fraction form
    323,941.95/486,006.28 = 99,335.50/x
  3. Step 3: Cross multiply
    323,941.95x = 486,006.28 × 99,335.50
  4. Step 4: Simplify right side
    323,941.95x = 48,277,675,363.59
  5. Step 5: Solve for x
    x = 48,277,675,363.59/323,941.95
  6. Step 6: Final answer
    x = 149,031.87

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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.