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Finding the Fourth Proportional to 445,577.25, 668,354.84 and 130,036.89

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Solution

The fourth proportional to 445,577.25, 668,354.84 and 130,036.89 is: 195,052.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,577.25 : 668,354.84 = 130,036.89 : x
  2. Step 2: Convert to fraction form
    445,577.25/668,354.84 = 130,036.89/x
  3. Step 3: Cross multiply
    445,577.25x = 668,354.84 × 130,036.89
  4. Step 4: Simplify right side
    445,577.25x = 86,910,784,159.86
  5. Step 5: Solve for x
    x = 86,910,784,159.86/445,577.25
  6. Step 6: Final answer
    x = 195,052.11

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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.