Home / 208,250.27-287,170.57-178,135.28

Finding the Fourth Proportional to 208,250.27, 287,170.57 and 178,135.28

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Solution

The fourth proportional to 208,250.27, 287,170.57 and 178,135.28 is: 245,642.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,250.27 : 287,170.57 = 178,135.28 : x
  2. Step 2: Convert to fraction form
    208,250.27/287,170.57 = 178,135.28/x
  3. Step 3: Cross multiply
    208,250.27x = 287,170.57 × 178,135.28
  4. Step 4: Simplify right side
    208,250.27x = 51,155,207,568.18
  5. Step 5: Solve for x
    x = 51,155,207,568.18/208,250.27
  6. Step 6: Final answer
    x = 245,642.94

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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.