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Finding the Fourth Proportional to 237,980.94, 328,392.78 and 135,986.16

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Solution

The fourth proportional to 237,980.94, 328,392.78 and 135,986.16 is: 187,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,980.94 : 328,392.78 = 135,986.16 : x
  2. Step 2: Convert to fraction form
    237,980.94/328,392.78 = 135,986.16/x
  3. Step 3: Cross multiply
    237,980.94x = 328,392.78 × 135,986.16
  4. Step 4: Simplify right side
    237,980.94x = 44,656,873,123.92
  5. Step 5: Solve for x
    x = 44,656,873,123.92/237,980.94
  6. Step 6: Final answer
    x = 187,648.95

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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.