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Finding the Fourth Proportional to 347,479.62, 479,470.86 and 194,509.86

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Solution

The fourth proportional to 347,479.62, 479,470.86 and 194,509.86 is: 268,395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,479.62 : 479,470.86 = 194,509.86 : x
  2. Step 2: Convert to fraction form
    347,479.62/479,470.86 = 194,509.86/x
  3. Step 3: Cross multiply
    347,479.62x = 479,470.86 × 194,509.86
  4. Step 4: Simplify right side
    347,479.62x = 93,261,809,852.68
  5. Step 5: Solve for x
    x = 93,261,809,852.68/347,479.62
  6. Step 6: Final answer
    x = 268,395.05

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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.