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Finding the Fourth Proportional to 192,140.88, 288,210.69 and 51,899.55

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Solution

The fourth proportional to 192,140.88, 288,210.69 and 51,899.55 is: 77,849.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,140.88 : 288,210.69 = 51,899.55 : x
  2. Step 2: Convert to fraction form
    192,140.88/288,210.69 = 51,899.55/x
  3. Step 3: Cross multiply
    192,140.88x = 288,210.69 × 51,899.55
  4. Step 4: Simplify right side
    192,140.88x = 14,958,005,116.19
  5. Step 5: Solve for x
    x = 14,958,005,116.19/192,140.88
  6. Step 6: Final answer
    x = 77,849.15

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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.