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Finding the Fourth Proportional to 203,525.65, 305,233.80 and 70,446.70

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Solution

The fourth proportional to 203,525.65, 305,233.80 and 70,446.70 is: 105,651.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,525.65 : 305,233.80 = 70,446.70 : x
  2. Step 2: Convert to fraction form
    203,525.65/305,233.80 = 70,446.70/x
  3. Step 3: Cross multiply
    203,525.65x = 305,233.80 × 70,446.70
  4. Step 4: Simplify right side
    203,525.65x = 21,502,713,938.46
  5. Step 5: Solve for x
    x = 21,502,713,938.46/203,525.65
  6. Step 6: Final answer
    x = 105,651.13

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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.