Home / 238,016.18-328,416.45-153,121.70

Finding the Fourth Proportional to 238,016.18, 328,416.45 and 153,121.70

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Solution

The fourth proportional to 238,016.18, 328,416.45 and 153,121.70 is: 211,278.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,016.18 : 328,416.45 = 153,121.70 : x
  2. Step 2: Convert to fraction form
    238,016.18/328,416.45 = 153,121.70/x
  3. Step 3: Cross multiply
    238,016.18x = 328,416.45 × 153,121.70
  4. Step 4: Simplify right side
    238,016.18x = 50,287,685,131.97
  5. Step 5: Solve for x
    x = 50,287,685,131.97/238,016.18
  6. Step 6: Final answer
    x = 211,278.43

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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.