Home / 265,560.12-398,340.18-187,320.20

Finding the Fourth Proportional to 265,560.12, 398,340.18 and 187,320.20

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Solution

The fourth proportional to 265,560.12, 398,340.18 and 187,320.20 is: 280,980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,560.12 : 398,340.18 = 187,320.20 : x
  2. Step 2: Convert to fraction form
    265,560.12/398,340.18 = 187,320.20/x
  3. Step 3: Cross multiply
    265,560.12x = 398,340.18 × 187,320.20
  4. Step 4: Simplify right side
    265,560.12x = 74,617,160,193.94
  5. Step 5: Solve for x
    x = 74,617,160,193.94/265,560.12
  6. Step 6: Final answer
    x = 280,980.29

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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.