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Finding the Fourth Proportional to 371,340.89, 512,462.64 and 210,192.48

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Solution

The fourth proportional to 371,340.89, 512,462.64 and 210,192.48 is: 290,072.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,340.89 : 512,462.64 = 210,192.48 : x
  2. Step 2: Convert to fraction form
    371,340.89/512,462.64 = 210,192.48/x
  3. Step 3: Cross multiply
    371,340.89x = 512,462.64 × 210,192.48
  4. Step 4: Simplify right side
    371,340.89x = 107,715,793,208.95
  5. Step 5: Solve for x
    x = 107,715,793,208.95/371,340.89
  6. Step 6: Final answer
    x = 290,072.53

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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.