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Finding the Fourth Proportional to 376,889.16, 520,126.95 and 213,577.30

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Solution

The fourth proportional to 376,889.16, 520,126.95 and 213,577.30 is: 294,747.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,889.16 : 520,126.95 = 213,577.30 : x
  2. Step 2: Convert to fraction form
    376,889.16/520,126.95 = 213,577.30/x
  3. Step 3: Cross multiply
    376,889.16x = 520,126.95 × 213,577.30
  4. Step 4: Simplify right side
    376,889.16x = 111,087,309,638.24
  5. Step 5: Solve for x
    x = 111,087,309,638.24/376,889.16
  6. Step 6: Final answer
    x = 294,747.96

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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.