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Finding the Fourth Proportional to 371,069.64, 512,556.66 and 274,470

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Solution

The fourth proportional to 371,069.64, 512,556.66 and 274,470 is: 379,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,069.64 : 512,556.66 = 274,470 : x
  2. Step 2: Convert to fraction form
    371,069.64/512,556.66 = 274,470/x
  3. Step 3: Cross multiply
    371,069.64x = 512,556.66 × 274,470
  4. Step 4: Simplify right side
    371,069.64x = 140,681,426,470.20
  5. Step 5: Solve for x
    x = 140,681,426,470.20/371,069.64
  6. Step 6: Final answer
    x = 379,124.05

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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.