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Finding the Fourth Proportional to 304,954.80, 457,691.40 and 245,857.20

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Solution

The fourth proportional to 304,954.80, 457,691.40 and 245,857.20 is: 368,994.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,954.80 : 457,691.40 = 245,857.20 : x
  2. Step 2: Convert to fraction form
    304,954.80/457,691.40 = 245,857.20/x
  3. Step 3: Cross multiply
    304,954.80x = 457,691.40 × 245,857.20
  4. Step 4: Simplify right side
    304,954.80x = 112,526,726,068.08
  5. Step 5: Solve for x
    x = 112,526,726,068.08/304,954.80
  6. Step 6: Final answer
    x = 368,994.77

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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.