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Finding the Fourth Proportional to 260,510.50, 390,765.75 and 73,522

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Solution

The fourth proportional to 260,510.50, 390,765.75 and 73,522 is: 110,283

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,510.50 : 390,765.75 = 73,522 : x
  2. Step 2: Convert to fraction form
    260,510.50/390,765.75 = 73,522/x
  3. Step 3: Cross multiply
    260,510.50x = 390,765.75 × 73,522
  4. Step 4: Simplify right side
    260,510.50x = 28,729,879,471.50
  5. Step 5: Solve for x
    x = 28,729,879,471.50/260,510.50
  6. Step 6: Final answer
    x = 110,283

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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.