Home / 286,943.90-430,399.25-109,468.85

Finding the Fourth Proportional to 286,943.90, 430,399.25 and 109,468.85

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Solution

The fourth proportional to 286,943.90, 430,399.25 and 109,468.85 is: 164,196.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,943.90 : 430,399.25 = 109,468.85 : x
  2. Step 2: Convert to fraction form
    286,943.90/430,399.25 = 109,468.85/x
  3. Step 3: Cross multiply
    286,943.90x = 430,399.25 × 109,468.85
  4. Step 4: Simplify right side
    286,943.90x = 47,115,310,391.02
  5. Step 5: Solve for x
    x = 47,115,310,391.02/286,943.90
  6. Step 6: Final answer
    x = 164,196.94

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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.