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Finding the Fourth Proportional to 371,630.63, 512,857.00 and 210,519.14

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Solution

The fourth proportional to 371,630.63, 512,857.00 and 210,519.14 is: 290,520.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,630.63 : 512,857.00 = 210,519.14 : x
  2. Step 2: Convert to fraction form
    371,630.63/512,857.00 = 210,519.14/x
  3. Step 3: Cross multiply
    371,630.63x = 512,857.00 × 210,519.14
  4. Step 4: Simplify right side
    371,630.63x = 107,966,212,281.84
  5. Step 5: Solve for x
    x = 107,966,212,281.84/371,630.63
  6. Step 6: Final answer
    x = 290,520.22

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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.