Home / 260,361.08-390,544.86-82,867.40

Finding the Fourth Proportional to 260,361.08, 390,544.86 and 82,867.40

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Solution

The fourth proportional to 260,361.08, 390,544.86 and 82,867.40 is: 124,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,361.08 : 390,544.86 = 82,867.40 : x
  2. Step 2: Convert to fraction form
    260,361.08/390,544.86 = 82,867.40/x
  3. Step 3: Cross multiply
    260,361.08x = 390,544.86 × 82,867.40
  4. Step 4: Simplify right side
    260,361.08x = 32,363,437,131.56
  5. Step 5: Solve for x
    x = 32,363,437,131.56/260,361.08
  6. Step 6: Final answer
    x = 124,302.13

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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.