Home / 286,370.28-429,555.42-76,002.75

Finding the Fourth Proportional to 286,370.28, 429,555.42 and 76,002.75

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Solution

The fourth proportional to 286,370.28, 429,555.42 and 76,002.75 is: 114,004.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,370.28 : 429,555.42 = 76,002.75 : x
  2. Step 2: Convert to fraction form
    286,370.28/429,555.42 = 76,002.75/x
  3. Step 3: Cross multiply
    286,370.28x = 429,555.42 × 76,002.75
  4. Step 4: Simplify right side
    286,370.28x = 32,647,393,197.41
  5. Step 5: Solve for x
    x = 32,647,393,197.41/286,370.28
  6. Step 6: Final answer
    x = 114,004.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.