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Finding the Fourth Proportional to 371,422.68, 512,575.56 and 210,274.44

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Solution

The fourth proportional to 371,422.68, 512,575.56 and 210,274.44 is: 290,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,422.68 : 512,575.56 = 210,274.44 : x
  2. Step 2: Convert to fraction form
    371,422.68/512,575.56 = 210,274.44/x
  3. Step 3: Cross multiply
    371,422.68x = 512,575.56 × 210,274.44
  4. Step 4: Simplify right side
    371,422.68x = 107,781,538,836.69
  5. Step 5: Solve for x
    x = 107,781,538,836.69/371,422.68
  6. Step 6: Final answer
    x = 290,185.67

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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.