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Finding the Fourth Proportional to 203,278.65, 304,966.43 and 70,160.07

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Solution

The fourth proportional to 203,278.65, 304,966.43 and 70,160.07 is: 105,256.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,278.65 : 304,966.43 = 70,160.07 : x
  2. Step 2: Convert to fraction form
    203,278.65/304,966.43 = 70,160.07/x
  3. Step 3: Cross multiply
    203,278.65x = 304,966.43 × 70,160.07
  4. Step 4: Simplify right side
    203,278.65x = 21,396,466,076.45
  5. Step 5: Solve for x
    x = 21,396,466,076.45/203,278.65
  6. Step 6: Final answer
    x = 105,256.83

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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.