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Finding the Fourth Proportional to 345,806.16, 477,331.56 and 202,612.56

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Solution

The fourth proportional to 345,806.16, 477,331.56 and 202,612.56 is: 279,675.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,806.16 : 477,331.56 = 202,612.56 : x
  2. Step 2: Convert to fraction form
    345,806.16/477,331.56 = 202,612.56/x
  3. Step 3: Cross multiply
    345,806.16x = 477,331.56 × 202,612.56
  4. Step 4: Simplify right side
    345,806.16x = 96,713,369,340.39
  5. Step 5: Solve for x
    x = 96,713,369,340.39/345,806.16
  6. Step 6: Final answer
    x = 279,675.09

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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.