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Finding the Fourth Proportional to 260,351.84, 390,562.68 and 91,832.56

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Solution

The fourth proportional to 260,351.84, 390,562.68 and 91,832.56 is: 137,761.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,351.84 : 390,562.68 = 91,832.56 : x
  2. Step 2: Convert to fraction form
    260,351.84/390,562.68 = 91,832.56/x
  3. Step 3: Cross multiply
    260,351.84x = 390,562.68 × 91,832.56
  4. Step 4: Simplify right side
    260,351.84x = 35,866,370,744.86
  5. Step 5: Solve for x
    x = 35,866,370,744.86/260,351.84
  6. Step 6: Final answer
    x = 137,761.16

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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.