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Finding the Fourth Proportional to 371,796.34, 513,037.30 and 210,616.87

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Solution

The fourth proportional to 371,796.34, 513,037.30 and 210,616.87 is: 290,627.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,796.34 : 513,037.30 = 210,616.87 : x
  2. Step 2: Convert to fraction form
    371,796.34/513,037.30 = 210,616.87/x
  3. Step 3: Cross multiply
    371,796.34x = 513,037.30 × 210,616.87
  4. Step 4: Simplify right side
    371,796.34x = 108,054,310,319.25
  5. Step 5: Solve for x
    x = 108,054,310,319.25/371,796.34
  6. Step 6: Final answer
    x = 290,627.69

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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.