Home / 208,371.27-287,546.40-122,328.84

Finding the Fourth Proportional to 208,371.27, 287,546.40 and 122,328.84

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Solution

The fourth proportional to 208,371.27, 287,546.40 and 122,328.84 is: 168,810.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,371.27 : 287,546.40 = 122,328.84 : x
  2. Step 2: Convert to fraction form
    208,371.27/287,546.40 = 122,328.84/x
  3. Step 3: Cross multiply
    208,371.27x = 287,546.40 × 122,328.84
  4. Step 4: Simplify right side
    208,371.27x = 35,175,217,558.18
  5. Step 5: Solve for x
    x = 35,175,217,558.18/208,371.27
  6. Step 6: Final answer
    x = 168,810.30

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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.