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Finding the Fourth Proportional to 377,243.71, 520,593.73 and 213,931.07

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Solution

The fourth proportional to 377,243.71, 520,593.73 and 213,931.07 is: 295,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,243.71 : 520,593.73 = 213,931.07 : x
  2. Step 2: Convert to fraction form
    377,243.71/520,593.73 = 213,931.07/x
  3. Step 3: Cross multiply
    377,243.71x = 520,593.73 × 213,931.07
  4. Step 4: Simplify right side
    377,243.71x = 111,371,173,694.19
  5. Step 5: Solve for x
    x = 111,371,173,694.19/377,243.71
  6. Step 6: Final answer
    x = 295,223.41

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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.