Home / 340,922.85-511,384-91,604.85

Finding the Fourth Proportional to 340,922.85, 511,384 and 91,604.85

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Solution

The fourth proportional to 340,922.85, 511,384 and 91,604.85 is: 137,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,922.85 : 511,384 = 91,604.85 : x
  2. Step 2: Convert to fraction form
    340,922.85/511,384 = 91,604.85/x
  3. Step 3: Cross multiply
    340,922.85x = 511,384 × 91,604.85
  4. Step 4: Simplify right side
    340,922.85x = 46,845,254,612.40
  5. Step 5: Solve for x
    x = 46,845,254,612.40/340,922.85
  6. Step 6: Final answer
    x = 137,407.20

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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.