Home / 260,028.10-389,264.55-154,792.90

Finding the Fourth Proportional to 260,028.10, 389,264.55 and 154,792.90

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Solution

The fourth proportional to 260,028.10, 389,264.55 and 154,792.90 is: 231,726.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,028.10 : 389,264.55 = 154,792.90 : x
  2. Step 2: Convert to fraction form
    260,028.10/389,264.55 = 154,792.90/x
  3. Step 3: Cross multiply
    260,028.10x = 389,264.55 × 154,792.90
  4. Step 4: Simplify right side
    260,028.10x = 60,255,388,561.70
  5. Step 5: Solve for x
    x = 60,255,388,561.70/260,028.10
  6. Step 6: Final answer
    x = 231,726.45

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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.