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Finding the Fourth Proportional to 376,259.40, 519,237.96 and 225,356.40

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Solution

The fourth proportional to 376,259.40, 519,237.96 and 225,356.40 is: 310,991.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,259.40 : 519,237.96 = 225,356.40 : x
  2. Step 2: Convert to fraction form
    376,259.40/519,237.96 = 225,356.40/x
  3. Step 3: Cross multiply
    376,259.40x = 519,237.96 × 225,356.40
  4. Step 4: Simplify right side
    376,259.40x = 117,013,597,408.94
  5. Step 5: Solve for x
    x = 117,013,597,408.94/376,259.40
  6. Step 6: Final answer
    x = 310,991.82

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1.5x scale

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.