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Finding the Fourth Proportional to 378,477.66, 567,073.80 and 228,402.57

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Solution

The fourth proportional to 378,477.66, 567,073.80 and 228,402.57 is: 342,216.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,477.66 : 567,073.80 = 228,402.57 : x
  2. Step 2: Convert to fraction form
    378,477.66/567,073.80 = 228,402.57/x
  3. Step 3: Cross multiply
    378,477.66x = 567,073.80 × 228,402.57
  4. Step 4: Simplify right side
    378,477.66x = 129,521,113,299.67
  5. Step 5: Solve for x
    x = 129,521,113,299.67/378,477.66
  6. Step 6: Final answer
    x = 342,216.01

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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.