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Finding the Fourth Proportional to 388,502.15, 582,600.06 and 188,763.44

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Solution

The fourth proportional to 388,502.15, 582,600.06 and 188,763.44 is: 283,070.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,502.15 : 582,600.06 = 188,763.44 : x
  2. Step 2: Convert to fraction form
    388,502.15/582,600.06 = 188,763.44/x
  3. Step 3: Cross multiply
    388,502.15x = 582,600.06 × 188,763.44
  4. Step 4: Simplify right side
    388,502.15x = 109,973,588,556.81
  5. Step 5: Solve for x
    x = 109,973,588,556.81/388,502.15
  6. Step 6: Final answer
    x = 283,070.74

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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.