Home / 208,834.02-288,188.55-113,340.78

Finding the Fourth Proportional to 208,834.02, 288,188.55 and 113,340.78

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Solution

The fourth proportional to 208,834.02, 288,188.55 and 113,340.78 is: 156,408.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,834.02 : 288,188.55 = 113,340.78 : x
  2. Step 2: Convert to fraction form
    208,834.02/288,188.55 = 113,340.78/x
  3. Step 3: Cross multiply
    208,834.02x = 288,188.55 × 113,340.78
  4. Step 4: Simplify right side
    208,834.02x = 32,663,515,044.07
  5. Step 5: Solve for x
    x = 32,663,515,044.07/208,834.02
  6. Step 6: Final answer
    x = 156,408.98

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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.