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Finding the Fourth Proportional to 304,743.80, 457,115.70 and 127,249.40

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Solution

The fourth proportional to 304,743.80, 457,115.70 and 127,249.40 is: 190,874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,743.80 : 457,115.70 = 127,249.40 : x
  2. Step 2: Convert to fraction form
    304,743.80/457,115.70 = 127,249.40/x
  3. Step 3: Cross multiply
    304,743.80x = 457,115.70 × 127,249.40
  4. Step 4: Simplify right side
    304,743.80x = 58,167,698,555.58
  5. Step 5: Solve for x
    x = 58,167,698,555.58/304,743.80
  6. Step 6: Final answer
    x = 190,874.10

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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.