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Finding the Fourth Proportional to 376,358.80, 519,355.80 and 223,403.44

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Solution

The fourth proportional to 376,358.80, 519,355.80 and 223,403.44 is: 308,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,358.80 : 519,355.80 = 223,403.44 : x
  2. Step 2: Convert to fraction form
    376,358.80/519,355.80 = 223,403.44/x
  3. Step 3: Cross multiply
    376,358.80x = 519,355.80 × 223,403.44
  4. Step 4: Simplify right side
    376,358.80x = 116,025,872,303.95
  5. Step 5: Solve for x
    x = 116,025,872,303.95/376,358.80
  6. Step 6: Final answer
    x = 308,285.26

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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.