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Finding the Fourth Proportional to 203,174.48, 304,781.75 and 70,037.21

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Solution

The fourth proportional to 203,174.48, 304,781.75 and 70,037.21 is: 105,062.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,174.48 : 304,781.75 = 70,037.21 : x
  2. Step 2: Convert to fraction form
    203,174.48/304,781.75 = 70,037.21/x
  3. Step 3: Cross multiply
    203,174.48x = 304,781.75 × 70,037.21
  4. Step 4: Simplify right side
    203,174.48x = 21,346,063,428.92
  5. Step 5: Solve for x
    x = 21,346,063,428.92/203,174.48
  6. Step 6: Final answer
    x = 105,062.72

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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.