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Finding the Fourth Proportional to 237,686.80, 328,007.80 and 137,084.80

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Solution

The fourth proportional to 237,686.80, 328,007.80 and 137,084.80 is: 189,177.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,686.80 : 328,007.80 = 137,084.80 : x
  2. Step 2: Convert to fraction form
    237,686.80/328,007.80 = 137,084.80/x
  3. Step 3: Cross multiply
    237,686.80x = 328,007.80 × 137,084.80
  4. Step 4: Simplify right side
    237,686.80x = 44,964,883,661.44
  5. Step 5: Solve for x
    x = 44,964,883,661.44/237,686.80
  6. Step 6: Final answer
    x = 189,177.03

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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.