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Finding the Fourth Proportional to 281,279.74, 388,164.63 and 152,218.12

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Solution

The fourth proportional to 281,279.74, 388,164.63 and 152,218.12 is: 210,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,279.74 : 388,164.63 = 152,218.12 : x
  2. Step 2: Convert to fraction form
    281,279.74/388,164.63 = 152,218.12/x
  3. Step 3: Cross multiply
    281,279.74x = 388,164.63 × 152,218.12
  4. Step 4: Simplify right side
    281,279.74x = 59,085,690,229.10
  5. Step 5: Solve for x
    x = 59,085,690,229.10/281,279.74
  6. Step 6: Final answer
    x = 210,060.24

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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.