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Finding the Fourth Proportional to 170,274.95, 255,411.71 and 51,945.90

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Solution

The fourth proportional to 170,274.95, 255,411.71 and 51,945.90 is: 77,918.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,274.95 : 255,411.71 = 51,945.90 : x
  2. Step 2: Convert to fraction form
    170,274.95/255,411.71 = 51,945.90/x
  3. Step 3: Cross multiply
    170,274.95x = 255,411.71 × 51,945.90
  4. Step 4: Simplify right side
    170,274.95x = 13,267,591,146.49
  5. Step 5: Solve for x
    x = 13,267,591,146.49/170,274.95
  6. Step 6: Final answer
    x = 77,918.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.