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Finding the Fourth Proportional to 400,554.88, 552,766.42 and 219,266.92

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Solution

The fourth proportional to 400,554.88, 552,766.42 and 219,266.92 is: 302,588.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,554.88 : 552,766.42 = 219,266.92 : x
  2. Step 2: Convert to fraction form
    400,554.88/552,766.42 = 219,266.92/x
  3. Step 3: Cross multiply
    400,554.88x = 552,766.42 × 219,266.92
  4. Step 4: Simplify right side
    400,554.88x = 121,203,390,392.83
  5. Step 5: Solve for x
    x = 121,203,390,392.83/400,554.88
  6. Step 6: Final answer
    x = 302,588.72

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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.