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Finding the Fourth Proportional to 439,847.41, 659,783.40 and 155,497.78

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Solution

The fourth proportional to 439,847.41, 659,783.40 and 155,497.78 is: 233,251.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,847.41 : 659,783.40 = 155,497.78 : x
  2. Step 2: Convert to fraction form
    439,847.41/659,783.40 = 155,497.78/x
  3. Step 3: Cross multiply
    439,847.41x = 659,783.40 × 155,497.78
  4. Step 4: Simplify right side
    439,847.41x = 102,594,853,980.85
  5. Step 5: Solve for x
    x = 102,594,853,980.85/439,847.41
  6. Step 6: Final answer
    x = 233,251.01

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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.