Home / 259,471.46-389,259.71-109,711.50

Finding the Fourth Proportional to 259,471.46, 389,259.71 and 109,711.50

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Solution

The fourth proportional to 259,471.46, 389,259.71 and 109,711.50 is: 164,589.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,471.46 : 389,259.71 = 109,711.50 : x
  2. Step 2: Convert to fraction form
    259,471.46/389,259.71 = 109,711.50/x
  3. Step 3: Cross multiply
    259,471.46x = 389,259.71 × 109,711.50
  4. Step 4: Simplify right side
    259,471.46x = 42,706,266,125.11
  5. Step 5: Solve for x
    x = 42,706,266,125.11/259,471.46
  6. Step 6: Final answer
    x = 164,589.46

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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.