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Finding the Fourth Proportional to 551,978.40, 827,967.60 and 236,467.20

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Solution

The fourth proportional to 551,978.40, 827,967.60 and 236,467.20 is: 354,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,978.40 : 827,967.60 = 236,467.20 : x
  2. Step 2: Convert to fraction form
    551,978.40/827,967.60 = 236,467.20/x
  3. Step 3: Cross multiply
    551,978.40x = 827,967.60 × 236,467.20
  4. Step 4: Simplify right side
    551,978.40x = 195,787,180,062.72
  5. Step 5: Solve for x
    x = 195,787,180,062.72/551,978.40
  6. Step 6: Final answer
    x = 354,700.80

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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.