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Finding the Fourth Proportional to 347,320.51, 479,273.76 and 194,350.79

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Solution

The fourth proportional to 347,320.51, 479,273.76 and 194,350.79 is: 268,188.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,320.51 : 479,273.76 = 194,350.79 : x
  2. Step 2: Convert to fraction form
    347,320.51/479,273.76 = 194,350.79/x
  3. Step 3: Cross multiply
    347,320.51x = 479,273.76 × 194,350.79
  4. Step 4: Simplify right side
    347,320.51x = 93,147,235,080.45
  5. Step 5: Solve for x
    x = 93,147,235,080.45/347,320.51
  6. Step 6: Final answer
    x = 268,188.12

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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.