Home / 265,555.20-398,381.76-76,007.52

Finding the Fourth Proportional to 265,555.20, 398,381.76 and 76,007.52

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Solution

The fourth proportional to 265,555.20, 398,381.76 and 76,007.52 is: 114,025.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,555.20 : 398,381.76 = 76,007.52 : x
  2. Step 2: Convert to fraction form
    265,555.20/398,381.76 = 76,007.52/x
  3. Step 3: Cross multiply
    265,555.20x = 398,381.76 × 76,007.52
  4. Step 4: Simplify right side
    265,555.20x = 30,280,009,590.84
  5. Step 5: Solve for x
    x = 30,280,009,590.84/265,555.20
  6. Step 6: Final answer
    x = 114,025.29

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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.