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Finding the Fourth Proportional to 371,424.68, 512,578.32 and 210,276.44

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Solution

The fourth proportional to 371,424.68, 512,578.32 and 210,276.44 is: 290,188.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,424.68 : 512,578.32 = 210,276.44 : x
  2. Step 2: Convert to fraction form
    371,424.68/512,578.32 = 210,276.44/x
  3. Step 3: Cross multiply
    371,424.68x = 512,578.32 × 210,276.44
  4. Step 4: Simplify right side
    371,424.68x = 107,783,144,350.78
  5. Step 5: Solve for x
    x = 107,783,144,350.78/371,424.68
  6. Step 6: Final answer
    x = 290,188.43

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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.