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Finding the Fourth Proportional to 417,551.98, 626,021.25 and 133,078.84

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Solution

The fourth proportional to 417,551.98, 626,021.25 and 133,078.84 is: 199,520.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,551.98 : 626,021.25 = 133,078.84 : x
  2. Step 2: Convert to fraction form
    417,551.98/626,021.25 = 133,078.84/x
  3. Step 3: Cross multiply
    417,551.98x = 626,021.25 × 133,078.84
  4. Step 4: Simplify right side
    417,551.98x = 83,310,181,765.35
  5. Step 5: Solve for x
    x = 83,310,181,765.35/417,551.98
  6. Step 6: Final answer
    x = 199,520.50

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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.