Home / 208,880.67-288,255.69-113,387.43

Finding the Fourth Proportional to 208,880.67, 288,255.69 and 113,387.43

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Solution

The fourth proportional to 208,880.67, 288,255.69 and 113,387.43 is: 156,474.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,880.67 : 288,255.69 = 113,387.43 : x
  2. Step 2: Convert to fraction form
    208,880.67/288,255.69 = 113,387.43/x
  3. Step 3: Cross multiply
    208,880.67x = 288,255.69 × 113,387.43
  4. Step 4: Simplify right side
    208,880.67x = 32,684,571,871.98
  5. Step 5: Solve for x
    x = 32,684,571,871.98/208,880.67
  6. Step 6: Final answer
    x = 156,474.85

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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.