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Finding the Fourth Proportional to 228,793.55, 315,628.31 and 143,957.39

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Solution

The fourth proportional to 228,793.55, 315,628.31 and 143,957.39 is: 198,594.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,793.55 : 315,628.31 = 143,957.39 : x
  2. Step 2: Convert to fraction form
    228,793.55/315,628.31 = 143,957.39/x
  3. Step 3: Cross multiply
    228,793.55x = 315,628.31 × 143,957.39
  4. Step 4: Simplify right side
    228,793.55x = 45,437,026,603.39
  5. Step 5: Solve for x
    x = 45,437,026,603.39/228,793.55
  6. Step 6: Final answer
    x = 198,594.00

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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.