Home / 304,927.40-457,391.10-198,639.20

Finding the Fourth Proportional to 304,927.40, 457,391.10 and 198,639.20

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Solution

The fourth proportional to 304,927.40, 457,391.10 and 198,639.20 is: 297,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,927.40 : 457,391.10 = 198,639.20 : x
  2. Step 2: Convert to fraction form
    304,927.40/457,391.10 = 198,639.20/x
  3. Step 3: Cross multiply
    304,927.40x = 457,391.10 × 198,639.20
  4. Step 4: Simplify right side
    304,927.40x = 90,855,802,191.12
  5. Step 5: Solve for x
    x = 90,855,802,191.12/304,927.40
  6. Step 6: Final answer
    x = 297,958.80

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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.