Home / 208,926.41-288,310.43-113,431.01

Finding the Fourth Proportional to 208,926.41, 288,310.43 and 113,431.01

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Solution

The fourth proportional to 208,926.41, 288,310.43 and 113,431.01 is: 156,530.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,926.41 : 288,310.43 = 113,431.01 : x
  2. Step 2: Convert to fraction form
    208,926.41/288,310.43 = 113,431.01/x
  3. Step 3: Cross multiply
    208,926.41x = 288,310.43 × 113,431.01
  4. Step 4: Simplify right side
    208,926.41x = 32,703,342,701.28
  5. Step 5: Solve for x
    x = 32,703,342,701.28/208,926.41
  6. Step 6: Final answer
    x = 156,530.44

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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.