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Finding the Fourth Proportional to 270,312.78, 373,058.82 and 149,463.21

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Solution

The fourth proportional to 270,312.78, 373,058.82 and 149,463.21 is: 206,274.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,312.78 : 373,058.82 = 149,463.21 : x
  2. Step 2: Convert to fraction form
    270,312.78/373,058.82 = 149,463.21/x
  3. Step 3: Cross multiply
    270,312.78x = 373,058.82 × 149,463.21
  4. Step 4: Simplify right side
    270,312.78x = 55,758,568,756.01
  5. Step 5: Solve for x
    x = 55,758,568,756.01/270,312.78
  6. Step 6: Final answer
    x = 206,274.26

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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.