Home / 286,321.11-429,386.30-115,498.69

Finding the Fourth Proportional to 286,321.11, 429,386.30 and 115,498.69

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Solution

The fourth proportional to 286,321.11, 429,386.30 and 115,498.69 is: 173,209.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,321.11 : 429,386.30 = 115,498.69 : x
  2. Step 2: Convert to fraction form
    286,321.11/429,386.30 = 115,498.69/x
  3. Step 3: Cross multiply
    286,321.11x = 429,386.30 × 115,498.69
  4. Step 4: Simplify right side
    286,321.11x = 49,593,553,936.11
  5. Step 5: Solve for x
    x = 49,593,553,936.11/286,321.11
  6. Step 6: Final answer
    x = 173,209.56

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1.5x scale

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.