Home / 260,334.04-390,559.68-91,866.40

Finding the Fourth Proportional to 260,334.04, 390,559.68 and 91,866.40

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Solution

The fourth proportional to 260,334.04, 390,559.68 and 91,866.40 is: 137,820.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,334.04 : 390,559.68 = 91,866.40 : x
  2. Step 2: Convert to fraction form
    260,334.04/390,559.68 = 91,866.40/x
  3. Step 3: Cross multiply
    260,334.04x = 390,559.68 × 91,866.40
  4. Step 4: Simplify right side
    260,334.04x = 35,879,311,786.75
  5. Step 5: Solve for x
    x = 35,879,311,786.75/260,334.04
  6. Step 6: Final answer
    x = 137,820.29

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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.