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Finding the Fourth Proportional to 371,505.96, 512,680.23 and 210,392.37

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Solution

The fourth proportional to 371,505.96, 512,680.23 and 210,392.37 is: 290,342.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,505.96 : 512,680.23 = 210,392.37 : x
  2. Step 2: Convert to fraction form
    371,505.96/512,680.23 = 210,392.37/x
  3. Step 3: Cross multiply
    371,505.96x = 512,680.23 × 210,392.37
  4. Step 4: Simplify right side
    371,505.96x = 107,864,008,641.85
  5. Step 5: Solve for x
    x = 107,864,008,641.85/371,505.96
  6. Step 6: Final answer
    x = 290,342.61

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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.