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Finding the Fourth Proportional to 311,532.14, 429,700.88 and 190,733.10

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Solution

The fourth proportional to 311,532.14, 429,700.88 and 190,733.10 is: 263,080.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,532.14 : 429,700.88 = 190,733.10 : x
  2. Step 2: Convert to fraction form
    311,532.14/429,700.88 = 190,733.10/x
  3. Step 3: Cross multiply
    311,532.14x = 429,700.88 × 190,733.10
  4. Step 4: Simplify right side
    311,532.14x = 81,958,179,780.58
  5. Step 5: Solve for x
    x = 81,958,179,780.58/311,532.14
  6. Step 6: Final answer
    x = 263,080.97

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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.