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Finding the Fourth Proportional to 165,445.74, 248,250.62 and 65,603.79

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Solution

The fourth proportional to 165,445.74, 248,250.62 and 65,603.79 is: 98,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,445.74 : 248,250.62 = 65,603.79 : x
  2. Step 2: Convert to fraction form
    165,445.74/248,250.62 = 65,603.79/x
  3. Step 3: Cross multiply
    165,445.74x = 248,250.62 × 65,603.79
  4. Step 4: Simplify right side
    165,445.74x = 16,286,181,541.85
  5. Step 5: Solve for x
    x = 16,286,181,541.85/165,445.74
  6. Step 6: Final answer
    x = 98,438.20

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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.