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Finding the Fourth Proportional to 304,825.80, 457,238.70 and 127,331.40

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Solution

The fourth proportional to 304,825.80, 457,238.70 and 127,331.40 is: 190,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,825.80 : 457,238.70 = 127,331.40 : x
  2. Step 2: Convert to fraction form
    304,825.80/457,238.70 = 127,331.40/x
  3. Step 3: Cross multiply
    304,825.80x = 457,238.70 × 127,331.40
  4. Step 4: Simplify right side
    304,825.80x = 58,220,843,805.18
  5. Step 5: Solve for x
    x = 58,220,843,805.18/304,825.80
  6. Step 6: Final answer
    x = 190,997.10

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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.