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Finding the Fourth Proportional to 304,854.80, 457,282.20 and 127,360.40

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Solution

The fourth proportional to 304,854.80, 457,282.20 and 127,360.40 is: 191,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,854.80 : 457,282.20 = 127,360.40 : x
  2. Step 2: Convert to fraction form
    304,854.80/457,282.20 = 127,360.40/x
  3. Step 3: Cross multiply
    304,854.80x = 457,282.20 × 127,360.40
  4. Step 4: Simplify right side
    304,854.80x = 58,239,643,904.88
  5. Step 5: Solve for x
    x = 58,239,643,904.88/304,854.80
  6. Step 6: Final answer
    x = 191,040.60

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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.