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Finding the Fourth Proportional to 400,681.85, 552,955.84 and 228,627.82

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Solution

The fourth proportional to 400,681.85, 552,955.84 and 228,627.82 is: 315,514.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,681.85 : 552,955.84 = 228,627.82 : x
  2. Step 2: Convert to fraction form
    400,681.85/552,955.84 = 228,627.82/x
  3. Step 3: Cross multiply
    400,681.85x = 552,955.84 × 228,627.82
  4. Step 4: Simplify right side
    400,681.85x = 126,421,088,255.47
  5. Step 5: Solve for x
    x = 126,421,088,255.47/400,681.85
  6. Step 6: Final answer
    x = 315,514.89

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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.