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Finding the Fourth Proportional to 122,282.20, 183,455.70 and 43,388.20

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Solution

The fourth proportional to 122,282.20, 183,455.70 and 43,388.20 is: 65,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,282.20 : 183,455.70 = 43,388.20 : x
  2. Step 2: Convert to fraction form
    122,282.20/183,455.70 = 43,388.20/x
  3. Step 3: Cross multiply
    122,282.20x = 183,455.70 × 43,388.20
  4. Step 4: Simplify right side
    122,282.20x = 7,959,812,602.74
  5. Step 5: Solve for x
    x = 7,959,812,602.74/122,282.20
  6. Step 6: Final answer
    x = 65,093.80

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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.