Home / 257,771.90-386,565.55-89,246.95

Finding the Fourth Proportional to 257,771.90, 386,565.55 and 89,246.95

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Solution

The fourth proportional to 257,771.90, 386,565.55 and 89,246.95 is: 133,838.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,771.90 : 386,565.55 = 89,246.95 : x
  2. Step 2: Convert to fraction form
    257,771.90/386,565.55 = 89,246.95/x
  3. Step 3: Cross multiply
    257,771.90x = 386,565.55 × 89,246.95
  4. Step 4: Simplify right side
    257,771.90x = 34,499,795,123.04
  5. Step 5: Solve for x
    x = 34,499,795,123.04/257,771.90
  6. Step 6: Final answer
    x = 133,838.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.