Home / 355,132.46-489,961.24-202,132.37

Finding the Fourth Proportional to 355,132.46, 489,961.24 and 202,132.37

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Solution

The fourth proportional to 355,132.46, 489,961.24 and 202,132.37 is: 278,873.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,132.46 : 489,961.24 = 202,132.37 : x
  2. Step 2: Convert to fraction form
    355,132.46/489,961.24 = 202,132.37/x
  3. Step 3: Cross multiply
    355,132.46x = 489,961.24 × 202,132.37
  4. Step 4: Simplify right side
    355,132.46x = 99,037,027,368.91
  5. Step 5: Solve for x
    x = 99,037,027,368.91/355,132.46
  6. Step 6: Final answer
    x = 278,873.48

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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.