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Finding the Fourth Proportional to 373,099.53, 514,895.60 and 209,807.42

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Solution

The fourth proportional to 373,099.53, 514,895.60 and 209,807.42 is: 289,544.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,099.53 : 514,895.60 = 209,807.42 : x
  2. Step 2: Convert to fraction form
    373,099.53/514,895.60 = 209,807.42/x
  3. Step 3: Cross multiply
    373,099.53x = 514,895.60 × 209,807.42
  4. Step 4: Simplify right side
    373,099.53x = 108,028,919,217.11
  5. Step 5: Solve for x
    x = 108,028,919,217.11/373,099.53
  6. Step 6: Final answer
    x = 289,544.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.