Home / 286,813.08-430,399.44-109,335.60

Finding the Fourth Proportional to 286,813.08, 430,399.44 and 109,335.60

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Solution

The fourth proportional to 286,813.08, 430,399.44 and 109,335.60 is: 164,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,813.08 : 430,399.44 = 109,335.60 : x
  2. Step 2: Convert to fraction form
    286,813.08/430,399.44 = 109,335.60/x
  3. Step 3: Cross multiply
    286,813.08x = 430,399.44 × 109,335.60
  4. Step 4: Simplify right side
    286,813.08x = 47,057,981,012.06
  5. Step 5: Solve for x
    x = 47,057,981,012.06/286,813.08
  6. Step 6: Final answer
    x = 164,071.95

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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.