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Finding the Fourth Proportional to 371,441.97, 512,561.93 and 210,260.07

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Solution

The fourth proportional to 371,441.97, 512,561.93 and 210,260.07 is: 290,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,441.97 : 512,561.93 = 210,260.07 : x
  2. Step 2: Convert to fraction form
    371,441.97/512,561.93 = 210,260.07/x
  3. Step 3: Cross multiply
    371,441.97x = 512,561.93 × 210,260.07
  4. Step 4: Simplify right side
    371,441.97x = 107,771,306,229.84
  5. Step 5: Solve for x
    x = 107,771,306,229.84/371,441.97
  6. Step 6: Final answer
    x = 290,143.05

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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.