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Finding the Fourth Proportional to 398,189.52, 595,880.55 and 248,499.90

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Solution

The fourth proportional to 398,189.52, 595,880.55 and 248,499.90 is: 371,873.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,189.52 : 595,880.55 = 248,499.90 : x
  2. Step 2: Convert to fraction form
    398,189.52/595,880.55 = 248,499.90/x
  3. Step 3: Cross multiply
    398,189.52x = 595,880.55 × 248,499.90
  4. Step 4: Simplify right side
    398,189.52x = 148,076,257,086.95
  5. Step 5: Solve for x
    x = 148,076,257,086.95/398,189.52
  6. Step 6: Final answer
    x = 371,873.82

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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.