Home / 389,799.31-537,923.05-210,951.31

Finding the Fourth Proportional to 389,799.31, 537,923.05 and 210,951.31

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Solution

The fourth proportional to 389,799.31, 537,923.05 and 210,951.31 is: 291,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,799.31 : 537,923.05 = 210,951.31 : x
  2. Step 2: Convert to fraction form
    389,799.31/537,923.05 = 210,951.31/x
  3. Step 3: Cross multiply
    389,799.31x = 537,923.05 × 210,951.31
  4. Step 4: Simplify right side
    389,799.31x = 113,475,572,076.70
  5. Step 5: Solve for x
    x = 113,475,572,076.70/389,799.31
  6. Step 6: Final answer
    x = 291,112.81

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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.