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Finding the Fourth Proportional to 237,967.34, 328,391.87 and 135,991.64

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Solution

The fourth proportional to 237,967.34, 328,391.87 and 135,991.64 is: 187,666.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,967.34 : 328,391.87 = 135,991.64 : x
  2. Step 2: Convert to fraction form
    237,967.34/328,391.87 = 135,991.64/x
  3. Step 3: Cross multiply
    237,967.34x = 328,391.87 × 135,991.64
  4. Step 4: Simplify right side
    237,967.34x = 44,658,548,150.23
  5. Step 5: Solve for x
    x = 44,658,548,150.23/237,967.34
  6. Step 6: Final answer
    x = 187,666.71

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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.