Home / 186,278.92-278,065.97-172,401.64

Finding the Fourth Proportional to 186,278.92, 278,065.97 and 172,401.64

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Solution

The fourth proportional to 186,278.92, 278,065.97 and 172,401.64 is: 257,350.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,278.92 : 278,065.97 = 172,401.64 : x
  2. Step 2: Convert to fraction form
    186,278.92/278,065.97 = 172,401.64/x
  3. Step 3: Cross multiply
    186,278.92x = 278,065.97 × 172,401.64
  4. Step 4: Simplify right side
    186,278.92x = 47,939,029,256.19
  5. Step 5: Solve for x
    x = 47,939,029,256.19/186,278.92
  6. Step 6: Final answer
    x = 257,350.80

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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.