Home / 355,278.15-490,282.88-194,134.32

Finding the Fourth Proportional to 355,278.15, 490,282.88 and 194,134.32

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Solution

The fourth proportional to 355,278.15, 490,282.88 and 194,134.32 is: 267,904.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,278.15 : 490,282.88 = 194,134.32 : x
  2. Step 2: Convert to fraction form
    355,278.15/490,282.88 = 194,134.32/x
  3. Step 3: Cross multiply
    355,278.15x = 490,282.88 × 194,134.32
  4. Step 4: Simplify right side
    355,278.15x = 95,180,732,545.77
  5. Step 5: Solve for x
    x = 95,180,732,545.77/355,278.15
  6. Step 6: Final answer
    x = 267,904.83

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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.