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Finding the Fourth Proportional to 325,470.96, 488,259.09 and 100,778.58

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Solution

The fourth proportional to 325,470.96, 488,259.09 and 100,778.58 is: 151,184.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,470.96 : 488,259.09 = 100,778.58 : x
  2. Step 2: Convert to fraction form
    325,470.96/488,259.09 = 100,778.58/x
  3. Step 3: Cross multiply
    325,470.96x = 488,259.09 × 100,778.58
  4. Step 4: Simplify right side
    325,470.96x = 49,206,057,762.29
  5. Step 5: Solve for x
    x = 49,206,057,762.29/325,470.96
  6. Step 6: Final answer
    x = 151,184.17

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1.5x scale

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.