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Finding the Fourth Proportional to 208,043.88, 287,110.88 and 127,475.88

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Solution

The fourth proportional to 208,043.88, 287,110.88 and 127,475.88 is: 175,923.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,043.88 : 287,110.88 = 127,475.88 : x
  2. Step 2: Convert to fraction form
    208,043.88/287,110.88 = 127,475.88/x
  3. Step 3: Cross multiply
    208,043.88x = 287,110.88 × 127,475.88
  4. Step 4: Simplify right side
    208,043.88x = 36,599,712,085.57
  5. Step 5: Solve for x
    x = 36,599,712,085.57/208,043.88
  6. Step 6: Final answer
    x = 175,923.04

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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.