Home / 186,278.67-278,065.60-172,401.39

Finding the Fourth Proportional to 186,278.67, 278,065.60 and 172,401.39

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Solution

The fourth proportional to 186,278.67, 278,065.60 and 172,401.39 is: 257,350.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,278.67 : 278,065.60 = 172,401.39 : x
  2. Step 2: Convert to fraction form
    186,278.67/278,065.60 = 172,401.39/x
  3. Step 3: Cross multiply
    186,278.67x = 278,065.60 × 172,401.39
  4. Step 4: Simplify right side
    186,278.67x = 47,938,895,520.18
  5. Step 5: Solve for x
    x = 47,938,895,520.18/186,278.67
  6. Step 6: Final answer
    x = 257,350.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.