Home / 208,850.71-288,213.25-113,357.40

Finding the Fourth Proportional to 208,850.71, 288,213.25 and 113,357.40

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Solution

The fourth proportional to 208,850.71, 288,213.25 and 113,357.40 is: 156,432.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,850.71 : 288,213.25 = 113,357.40 : x
  2. Step 2: Convert to fraction form
    208,850.71/288,213.25 = 113,357.40/x
  3. Step 3: Cross multiply
    208,850.71x = 288,213.25 × 113,357.40
  4. Step 4: Simplify right side
    208,850.71x = 32,671,104,665.55
  5. Step 5: Solve for x
    x = 32,671,104,665.55/208,850.71
  6. Step 6: Final answer
    x = 156,432.82

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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.