Home / 208,810.41-288,158.55-113,317.11

Finding the Fourth Proportional to 208,810.41, 288,158.55 and 113,317.11

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Solution

The fourth proportional to 208,810.41, 288,158.55 and 113,317.11 is: 156,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,810.41 : 288,158.55 = 113,317.11 : x
  2. Step 2: Convert to fraction form
    208,810.41/288,158.55 = 113,317.11/x
  3. Step 3: Cross multiply
    208,810.41x = 288,158.55 × 113,317.11
  4. Step 4: Simplify right side
    208,810.41x = 32,653,294,107.79
  5. Step 5: Solve for x
    x = 32,653,294,107.79/208,810.41
  6. Step 6: Final answer
    x = 156,377.71

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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.