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Finding the Fourth Proportional to 577,358.72, 866,018.64 and 203,372

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Solution

The fourth proportional to 577,358.72, 866,018.64 and 203,372 is: 305,051.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,358.72 : 866,018.64 = 203,372 : x
  2. Step 2: Convert to fraction form
    577,358.72/866,018.64 = 203,372/x
  3. Step 3: Cross multiply
    577,358.72x = 866,018.64 × 203,372
  4. Step 4: Simplify right side
    577,358.72x = 176,123,942,854.08
  5. Step 5: Solve for x
    x = 176,123,942,854.08/577,358.72
  6. Step 6: Final answer
    x = 305,051.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.