Home / 260,113.14-390,282.30-91,753.56

Finding the Fourth Proportional to 260,113.14, 390,282.30 and 91,753.56

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Solution

The fourth proportional to 260,113.14, 390,282.30 and 91,753.56 is: 137,670.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,113.14 : 390,282.30 = 91,753.56 : x
  2. Step 2: Convert to fraction form
    260,113.14/390,282.30 = 91,753.56/x
  3. Step 3: Cross multiply
    260,113.14x = 390,282.30 × 91,753.56
  4. Step 4: Simplify right side
    260,113.14x = 35,809,790,429.99
  5. Step 5: Solve for x
    x = 35,809,790,429.99/260,113.14
  6. Step 6: Final answer
    x = 137,670.06

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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.