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Finding the Fourth Proportional to 475,668.88, 656,330.64 and 282,040.80

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Solution

The fourth proportional to 475,668.88, 656,330.64 and 282,040.80 is: 389,161.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,668.88 : 656,330.64 = 282,040.80 : x
  2. Step 2: Convert to fraction form
    475,668.88/656,330.64 = 282,040.80/x
  3. Step 3: Cross multiply
    475,668.88x = 656,330.64 × 282,040.80
  4. Step 4: Simplify right side
    475,668.88x = 185,112,018,770.11
  5. Step 5: Solve for x
    x = 185,112,018,770.11/475,668.88
  6. Step 6: Final answer
    x = 389,161.51

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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.