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Finding the Fourth Proportional to 279,437.66, 384,770.02 and 210,627.10

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Solution

The fourth proportional to 279,437.66, 384,770.02 and 210,627.10 is: 290,021.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,437.66 : 384,770.02 = 210,627.10 : x
  2. Step 2: Convert to fraction form
    279,437.66/384,770.02 = 210,627.10/x
  3. Step 3: Cross multiply
    279,437.66x = 384,770.02 × 210,627.10
  4. Step 4: Simplify right side
    279,437.66x = 81,042,993,479.54
  5. Step 5: Solve for x
    x = 81,042,993,479.54/279,437.66
  6. Step 6: Final answer
    x = 290,021.73

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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.