Home / 265,628.03-398,324.49-76,045.20

Finding the Fourth Proportional to 265,628.03, 398,324.49 and 76,045.20

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Solution

The fourth proportional to 265,628.03, 398,324.49 and 76,045.20 is: 114,034.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,628.03 : 398,324.49 = 76,045.20 : x
  2. Step 2: Convert to fraction form
    265,628.03/398,324.49 = 76,045.20/x
  3. Step 3: Cross multiply
    265,628.03x = 398,324.49 × 76,045.20
  4. Step 4: Simplify right side
    265,628.03x = 30,290,666,396.39
  5. Step 5: Solve for x
    x = 30,290,666,396.39/265,628.03
  6. Step 6: Final answer
    x = 114,034.15

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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.