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Finding the Fourth Proportional to 208,801.98, 288,140.22 and 116,921.52

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Solution

The fourth proportional to 208,801.98, 288,140.22 and 116,921.52 is: 161,348.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,801.98 : 288,140.22 = 116,921.52 : x
  2. Step 2: Convert to fraction form
    208,801.98/288,140.22 = 116,921.52/x
  3. Step 3: Cross multiply
    208,801.98x = 288,140.22 × 116,921.52
  4. Step 4: Simplify right side
    208,801.98x = 33,689,792,495.53
  5. Step 5: Solve for x
    x = 33,689,792,495.53/208,801.98
  6. Step 6: Final answer
    x = 161,348.05

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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.