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Finding the Fourth Proportional to 203,272.47, 304,957.15 and 70,153.88

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Solution

The fourth proportional to 203,272.47, 304,957.15 and 70,153.88 is: 105,247.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,272.47 : 304,957.15 = 70,153.88 : x
  2. Step 2: Convert to fraction form
    203,272.47/304,957.15 = 70,153.88/x
  3. Step 3: Cross multiply
    203,272.47x = 304,957.15 × 70,153.88
  4. Step 4: Simplify right side
    203,272.47x = 21,393,925,606.07
  5. Step 5: Solve for x
    x = 21,393,925,606.07/203,272.47
  6. Step 6: Final answer
    x = 105,247.53

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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.