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Finding the Fourth Proportional to 272,737.86, 409,130.46 and 83,240.90

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Solution

The fourth proportional to 272,737.86, 409,130.46 and 83,240.90 is: 124,868.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,737.86 : 409,130.46 = 83,240.90 : x
  2. Step 2: Convert to fraction form
    272,737.86/409,130.46 = 83,240.90/x
  3. Step 3: Cross multiply
    272,737.86x = 409,130.46 × 83,240.90
  4. Step 4: Simplify right side
    272,737.86x = 34,056,385,662.16
  5. Step 5: Solve for x
    x = 34,056,385,662.16/272,737.86
  6. Step 6: Final answer
    x = 124,868.57

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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.