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Finding the Fourth Proportional to 275,006.81, 412,510.55 and 75,328.92

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Solution

The fourth proportional to 275,006.81, 412,510.55 and 75,328.92 is: 112,993.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,006.81 : 412,510.55 = 75,328.92 : x
  2. Step 2: Convert to fraction form
    275,006.81/412,510.55 = 75,328.92/x
  3. Step 3: Cross multiply
    275,006.81x = 412,510.55 × 75,328.92
  4. Step 4: Simplify right side
    275,006.81x = 31,073,975,390.38
  5. Step 5: Solve for x
    x = 31,073,975,390.38/275,006.81
  6. Step 6: Final answer
    x = 112,993.48

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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.