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Finding the Fourth Proportional to 286,887.39, 430,034.61 and 109,346.73

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Solution

The fourth proportional to 286,887.39, 430,034.61 and 109,346.73 is: 163,907.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,887.39 : 430,034.61 = 109,346.73 : x
  2. Step 2: Convert to fraction form
    286,887.39/430,034.61 = 109,346.73/x
  3. Step 3: Cross multiply
    286,887.39x = 430,034.61 × 109,346.73
  4. Step 4: Simplify right side
    286,887.39x = 47,022,878,390.33
  5. Step 5: Solve for x
    x = 47,022,878,390.33/286,887.39
  6. Step 6: Final answer
    x = 163,907.09

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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.