Home / 208,424.27-287,621.73-117,778.29

Finding the Fourth Proportional to 208,424.27, 287,621.73 and 117,778.29

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Solution

The fourth proportional to 208,424.27, 287,621.73 and 117,778.29 is: 162,531.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,424.27 : 287,621.73 = 117,778.29 : x
  2. Step 2: Convert to fraction form
    208,424.27/287,621.73 = 117,778.29/x
  3. Step 3: Cross multiply
    208,424.27x = 287,621.73 × 117,778.29
  4. Step 4: Simplify right side
    208,424.27x = 33,875,595,526.24
  5. Step 5: Solve for x
    x = 33,875,595,526.24/208,424.27
  6. Step 6: Final answer
    x = 162,531.92

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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.