Home / 259,349.25-389,089.50-72,360.75

Finding the Fourth Proportional to 259,349.25, 389,089.50 and 72,360.75

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Solution

The fourth proportional to 259,349.25, 389,089.50 and 72,360.75 is: 108,559.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,349.25 : 389,089.50 = 72,360.75 : x
  2. Step 2: Convert to fraction form
    259,349.25/389,089.50 = 72,360.75/x
  3. Step 3: Cross multiply
    259,349.25x = 389,089.50 × 72,360.75
  4. Step 4: Simplify right side
    259,349.25x = 28,154,808,037.13
  5. Step 5: Solve for x
    x = 28,154,808,037.13/259,349.25
  6. Step 6: Final answer
    x = 108,559.43

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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.