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Finding the Fourth Proportional to 347,710.05, 479,785.01 and 202,539.69

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Solution

The fourth proportional to 347,710.05, 479,785.01 and 202,539.69 is: 279,472.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,710.05 : 479,785.01 = 202,539.69 : x
  2. Step 2: Convert to fraction form
    347,710.05/479,785.01 = 202,539.69/x
  3. Step 3: Cross multiply
    347,710.05x = 479,785.01 × 202,539.69
  4. Step 4: Simplify right side
    347,710.05x = 97,175,506,179.35
  5. Step 5: Solve for x
    x = 97,175,506,179.35/347,710.05
  6. Step 6: Final answer
    x = 279,472.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.