Home / 355,266.06-490,266.66-202,304.30

Finding the Fourth Proportional to 355,266.06, 490,266.66 and 202,304.30

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Solution

The fourth proportional to 355,266.06, 490,266.66 and 202,304.30 is: 279,179.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,266.06 : 490,266.66 = 202,304.30 : x
  2. Step 2: Convert to fraction form
    355,266.06/490,266.66 = 202,304.30/x
  3. Step 3: Cross multiply
    355,266.06x = 490,266.66 × 202,304.30
  4. Step 4: Simplify right side
    355,266.06x = 99,183,053,464.64
  5. Step 5: Solve for x
    x = 99,183,053,464.64/355,266.06
  6. Step 6: Final answer
    x = 279,179.65

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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.