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Finding the Fourth Proportional to 377,227.71, 521,945.03 and 328,930.35

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Solution

The fourth proportional to 377,227.71, 521,945.03 and 328,930.35 is: 455,119.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,227.71 : 521,945.03 = 328,930.35 : x
  2. Step 2: Convert to fraction form
    377,227.71/521,945.03 = 328,930.35/x
  3. Step 3: Cross multiply
    377,227.71x = 521,945.03 × 328,930.35
  4. Step 4: Simplify right side
    377,227.71x = 171,683,559,754.01
  5. Step 5: Solve for x
    x = 171,683,559,754.01/377,227.71
  6. Step 6: Final answer
    x = 455,119.16

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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.