Home / 265,756.72-398,515.02-76,173.70

Finding the Fourth Proportional to 265,756.72, 398,515.02 and 76,173.70

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Solution

The fourth proportional to 265,756.72, 398,515.02 and 76,173.70 is: 114,226.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,756.72 : 398,515.02 = 76,173.70 : x
  2. Step 2: Convert to fraction form
    265,756.72/398,515.02 = 76,173.70/x
  3. Step 3: Cross multiply
    265,756.72x = 398,515.02 × 76,173.70
  4. Step 4: Simplify right side
    265,756.72x = 30,356,363,578.97
  5. Step 5: Solve for x
    x = 30,356,363,578.97/265,756.72
  6. Step 6: Final answer
    x = 114,226.14

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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.