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Finding the Fourth Proportional to 389,843.46, 537,988.47 and 228,701.25

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Solution

The fourth proportional to 389,843.46, 537,988.47 and 228,701.25 is: 315,610.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,843.46 : 537,988.47 = 228,701.25 : x
  2. Step 2: Convert to fraction form
    389,843.46/537,988.47 = 228,701.25/x
  3. Step 3: Cross multiply
    389,843.46x = 537,988.47 × 228,701.25
  4. Step 4: Simplify right side
    389,843.46x = 123,038,635,574.59
  5. Step 5: Solve for x
    x = 123,038,635,574.59/389,843.46
  6. Step 6: Final answer
    x = 315,610.36

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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.