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Finding the Fourth Proportional to 400,442.52, 552,610.90 and 219,154.35

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Solution

The fourth proportional to 400,442.52, 552,610.90 and 219,154.35 is: 302,433.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,442.52 : 552,610.90 = 219,154.35 : x
  2. Step 2: Convert to fraction form
    400,442.52/552,610.90 = 219,154.35/x
  3. Step 3: Cross multiply
    400,442.52x = 552,610.90 × 219,154.35
  4. Step 4: Simplify right side
    400,442.52x = 121,107,080,794.07
  5. Step 5: Solve for x
    x = 121,107,080,794.07/400,442.52
  6. Step 6: Final answer
    x = 302,433.12

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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.