Home / 253,939.43-349,638.45-215,618.33

Finding the Fourth Proportional to 253,939.43, 349,638.45 and 215,618.33

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Solution

The fourth proportional to 253,939.43, 349,638.45 and 215,618.33 is: 296,875.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,939.43 : 349,638.45 = 215,618.33 : x
  2. Step 2: Convert to fraction form
    253,939.43/349,638.45 = 215,618.33/x
  3. Step 3: Cross multiply
    253,939.43x = 349,638.45 × 215,618.33
  4. Step 4: Simplify right side
    253,939.43x = 75,388,458,692.79
  5. Step 5: Solve for x
    x = 75,388,458,692.79/253,939.43
  6. Step 6: Final answer
    x = 296,875.75

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1.5x scale

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.