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Finding the Fourth Proportional to 377,388, 520,795.44 and 207,618.48

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Solution

The fourth proportional to 377,388, 520,795.44 and 207,618.48 is: 286,513.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,388 : 520,795.44 = 207,618.48 : x
  2. Step 2: Convert to fraction form
    377,388/520,795.44 = 207,618.48/x
  3. Step 3: Cross multiply
    377,388x = 520,795.44 × 207,618.48
  4. Step 4: Simplify right side
    377,388x = 108,126,757,643.73
  5. Step 5: Solve for x
    x = 108,126,757,643.73/377,388
  6. Step 6: Final answer
    x = 286,513.50

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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.