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Finding the Fourth Proportional to 371,530.08, 512,842.32 and 220,626

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Solution

The fourth proportional to 371,530.08, 512,842.32 and 220,626 is: 304,541.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,530.08 : 512,842.32 = 220,626 : x
  2. Step 2: Convert to fraction form
    371,530.08/512,842.32 = 220,626/x
  3. Step 3: Cross multiply
    371,530.08x = 512,842.32 × 220,626
  4. Step 4: Simplify right side
    371,530.08x = 113,146,349,692.32
  5. Step 5: Solve for x
    x = 113,146,349,692.32/371,530.08
  6. Step 6: Final answer
    x = 304,541.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.