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Finding the Fourth Proportional to 297,107.58, 445,701.04 and 86,742.48

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Solution

The fourth proportional to 297,107.58, 445,701.04 and 86,742.48 is: 130,125.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,107.58 : 445,701.04 = 86,742.48 : x
  2. Step 2: Convert to fraction form
    297,107.58/445,701.04 = 86,742.48/x
  3. Step 3: Cross multiply
    297,107.58x = 445,701.04 × 86,742.48
  4. Step 4: Simplify right side
    297,107.58x = 38,661,213,548.18
  5. Step 5: Solve for x
    x = 38,661,213,548.18/297,107.58
  6. Step 6: Final answer
    x = 130,125.30

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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.