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Finding the Fourth Proportional to 240,456, 331,844.64 and 134,472

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Solution

The fourth proportional to 240,456, 331,844.64 and 134,472 is: 185,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,456 : 331,844.64 = 134,472 : x
  2. Step 2: Convert to fraction form
    240,456/331,844.64 = 134,472/x
  3. Step 3: Cross multiply
    240,456x = 331,844.64 × 134,472
  4. Step 4: Simplify right side
    240,456x = 44,623,812,430.08
  5. Step 5: Solve for x
    x = 44,623,812,430.08/240,456
  6. Step 6: Final answer
    x = 185,579.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.