Home / 260,918.46-391,446.90-83,428.74

Finding the Fourth Proportional to 260,918.46, 391,446.90 and 83,428.74

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Solution

The fourth proportional to 260,918.46, 391,446.90 and 83,428.74 is: 125,165.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,918.46 : 391,446.90 = 83,428.74 : x
  2. Step 2: Convert to fraction form
    260,918.46/391,446.90 = 83,428.74/x
  3. Step 3: Cross multiply
    260,918.46x = 391,446.90 × 83,428.74
  4. Step 4: Simplify right side
    260,918.46x = 32,657,921,643.91
  5. Step 5: Solve for x
    x = 32,657,921,643.91/260,918.46
  6. Step 6: Final answer
    x = 125,165.24

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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.