Home / 351,533.20-485,083.72-208,270.12

Finding the Fourth Proportional to 351,533.20, 485,083.72 and 208,270.12

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Solution

The fourth proportional to 351,533.20, 485,083.72 and 208,270.12 is: 287,393.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,533.20 : 485,083.72 = 208,270.12 : x
  2. Step 2: Convert to fraction form
    351,533.20/485,083.72 = 208,270.12/x
  3. Step 3: Cross multiply
    351,533.20x = 485,083.72 × 208,270.12
  4. Step 4: Simplify right side
    351,533.20x = 101,028,444,574.45
  5. Step 5: Solve for x
    x = 101,028,444,574.45/351,533.20
  6. Step 6: Final answer
    x = 287,393.75

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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.