Home / 345,815.16-477,344-202,621.56

Finding the Fourth Proportional to 345,815.16, 477,344 and 202,621.56

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Solution

The fourth proportional to 345,815.16, 477,344 and 202,621.56 is: 279,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,815.16 : 477,344 = 202,621.56 : x
  2. Step 2: Convert to fraction form
    345,815.16/477,344 = 202,621.56/x
  3. Step 3: Cross multiply
    345,815.16x = 477,344 × 202,621.56
  4. Step 4: Simplify right side
    345,815.16x = 96,720,185,936.64
  5. Step 5: Solve for x
    x = 96,720,185,936.64/345,815.16
  6. Step 6: Final answer
    x = 279,687.52

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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.