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Finding the Fourth Proportional to 377,692.16, 521,219.76 and 207,937.76

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Solution

The fourth proportional to 377,692.16, 521,219.76 and 207,937.76 is: 286,956.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,692.16 : 521,219.76 = 207,937.76 : x
  2. Step 2: Convert to fraction form
    377,692.16/521,219.76 = 207,937.76/x
  3. Step 3: Cross multiply
    377,692.16x = 521,219.76 × 207,937.76
  4. Step 4: Simplify right side
    377,692.16x = 108,381,269,362.14
  5. Step 5: Solve for x
    x = 108,381,269,362.14/377,692.16
  6. Step 6: Final answer
    x = 286,956.63

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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.