Home / 283,830.28-391,278.87-223,295.94

Finding the Fourth Proportional to 283,830.28, 391,278.87 and 223,295.94

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Solution

The fourth proportional to 283,830.28, 391,278.87 and 223,295.94 is: 307,828.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,830.28 : 391,278.87 = 223,295.94 : x
  2. Step 2: Convert to fraction form
    283,830.28/391,278.87 = 223,295.94/x
  3. Step 3: Cross multiply
    283,830.28x = 391,278.87 × 223,295.94
  4. Step 4: Simplify right side
    283,830.28x = 87,370,983,078.79
  5. Step 5: Solve for x
    x = 87,370,983,078.79/283,830.28
  6. Step 6: Final answer
    x = 307,828.27

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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.