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Finding the Fourth Proportional to 203,274.90, 304,960.80 and 70,156.32

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Solution

The fourth proportional to 203,274.90, 304,960.80 and 70,156.32 is: 105,251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,274.90 : 304,960.80 = 70,156.32 : x
  2. Step 2: Convert to fraction form
    203,274.90/304,960.80 = 70,156.32/x
  3. Step 3: Cross multiply
    203,274.90x = 304,960.80 × 70,156.32
  4. Step 4: Simplify right side
    203,274.90x = 21,394,927,472.26
  5. Step 5: Solve for x
    x = 21,394,927,472.26/203,274.90
  6. Step 6: Final answer
    x = 105,251.20

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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.