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Finding the Fourth Proportional to 208,674.06, 287,976.72 and 118,028.26

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Solution

The fourth proportional to 208,674.06, 287,976.72 and 118,028.26 is: 162,882.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,674.06 : 287,976.72 = 118,028.26 : x
  2. Step 2: Convert to fraction form
    208,674.06/287,976.72 = 118,028.26/x
  3. Step 3: Cross multiply
    208,674.06x = 287,976.72 × 118,028.26
  4. Step 4: Simplify right side
    208,674.06x = 33,989,391,182.11
  5. Step 5: Solve for x
    x = 33,989,391,182.11/208,674.06
  6. Step 6: Final answer
    x = 162,882.68

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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.