Home / 286,045.08-428,901.46-108,455.22

Finding the Fourth Proportional to 286,045.08, 428,901.46 and 108,455.22

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Solution

The fourth proportional to 286,045.08, 428,901.46 and 108,455.22 is: 162,619.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,045.08 : 428,901.46 = 108,455.22 : x
  2. Step 2: Convert to fraction form
    286,045.08/428,901.46 = 108,455.22/x
  3. Step 3: Cross multiply
    286,045.08x = 428,901.46 × 108,455.22
  4. Step 4: Simplify right side
    286,045.08x = 46,516,602,202.62
  5. Step 5: Solve for x
    x = 46,516,602,202.62/286,045.08
  6. Step 6: Final answer
    x = 162,619.83

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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.