Home / 351,921.06-485,839.52-275,277.32

Finding the Fourth Proportional to 351,921.06, 485,839.52 and 275,277.32

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Solution

The fourth proportional to 351,921.06, 485,839.52 and 275,277.32 is: 380,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,921.06 : 485,839.52 = 275,277.32 : x
  2. Step 2: Convert to fraction form
    351,921.06/485,839.52 = 275,277.32/x
  3. Step 3: Cross multiply
    351,921.06x = 485,839.52 × 275,277.32
  4. Step 4: Simplify right side
    351,921.06x = 133,740,597,210.10
  5. Step 5: Solve for x
    x = 133,740,597,210.10/351,921.06
  6. Step 6: Final answer
    x = 380,030.10

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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.