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Finding the Fourth Proportional to 192,068.20, 287,735.10 and 103,292.20

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Solution

The fourth proportional to 192,068.20, 287,735.10 and 103,292.20 is: 154,740.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,068.20 : 287,735.10 = 103,292.20 : x
  2. Step 2: Convert to fraction form
    192,068.20/287,735.10 = 103,292.20/x
  3. Step 3: Cross multiply
    192,068.20x = 287,735.10 × 103,292.20
  4. Step 4: Simplify right side
    192,068.20x = 29,720,791,496.22
  5. Step 5: Solve for x
    x = 29,720,791,496.22/192,068.20
  6. Step 6: Final answer
    x = 154,740.82

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1.5x scale

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.