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Finding the Fourth Proportional to 370,788.08, 511,691.48 and 217,832.64

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Solution

The fourth proportional to 370,788.08, 511,691.48 and 217,832.64 is: 300,611.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,788.08 : 511,691.48 = 217,832.64 : x
  2. Step 2: Convert to fraction form
    370,788.08/511,691.48 = 217,832.64/x
  3. Step 3: Cross multiply
    370,788.08x = 511,691.48 × 217,832.64
  4. Step 4: Simplify right side
    370,788.08x = 111,463,106,641.04
  5. Step 5: Solve for x
    x = 111,463,106,641.04/370,788.08
  6. Step 6: Final answer
    x = 300,611.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.