Home / 355,260.15-490,205.48-202,304.12

Finding the Fourth Proportional to 355,260.15, 490,205.48 and 202,304.12

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Solution

The fourth proportional to 355,260.15, 490,205.48 and 202,304.12 is: 279,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,260.15 : 490,205.48 = 202,304.12 : x
  2. Step 2: Convert to fraction form
    355,260.15/490,205.48 = 202,304.12/x
  3. Step 3: Cross multiply
    355,260.15x = 490,205.48 × 202,304.12
  4. Step 4: Simplify right side
    355,260.15x = 99,170,584,788.03
  5. Step 5: Solve for x
    x = 99,170,584,788.03/355,260.15
  6. Step 6: Final answer
    x = 279,149.19

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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.