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Finding the Fourth Proportional to 389,333.88, 537,231.96 and 228,151.98

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Solution

The fourth proportional to 389,333.88, 537,231.96 and 228,151.98 is: 314,821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,333.88 : 537,231.96 = 228,151.98 : x
  2. Step 2: Convert to fraction form
    389,333.88/537,231.96 = 228,151.98/x
  3. Step 3: Cross multiply
    389,333.88x = 537,231.96 × 228,151.98
  4. Step 4: Simplify right side
    389,333.88x = 122,570,535,393.28
  5. Step 5: Solve for x
    x = 122,570,535,393.28/389,333.88
  6. Step 6: Final answer
    x = 314,821.14

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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.