Home / 304,734.13-420,393.52-197,338.79

Finding the Fourth Proportional to 304,734.13, 420,393.52 and 197,338.79

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Solution

The fourth proportional to 304,734.13, 420,393.52 and 197,338.79 is: 272,237.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,734.13 : 420,393.52 = 197,338.79 : x
  2. Step 2: Convert to fraction form
    304,734.13/420,393.52 = 197,338.79/x
  3. Step 3: Cross multiply
    304,734.13x = 420,393.52 × 197,338.79
  4. Step 4: Simplify right side
    304,734.13x = 82,959,948,560.64
  5. Step 5: Solve for x
    x = 82,959,948,560.64/304,734.13
  6. Step 6: Final answer
    x = 272,237.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.