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Finding the Fourth Proportional to 275,040.40, 412,560.88 and 75,362.40

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Solution

The fourth proportional to 275,040.40, 412,560.88 and 75,362.40 is: 113,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,040.40 : 412,560.88 = 75,362.40 : x
  2. Step 2: Convert to fraction form
    275,040.40/412,560.88 = 75,362.40/x
  3. Step 3: Cross multiply
    275,040.40x = 412,560.88 × 75,362.40
  4. Step 4: Simplify right side
    275,040.40x = 31,091,578,062.91
  5. Step 5: Solve for x
    x = 31,091,578,062.91/275,040.40
  6. Step 6: Final answer
    x = 113,043.68

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1.5x scale

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.