Home / 392,733.05-541,938.32-220,637.51

Finding the Fourth Proportional to 392,733.05, 541,938.32 and 220,637.51

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Solution

The fourth proportional to 392,733.05, 541,938.32 and 220,637.51 is: 304,461.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,733.05 : 541,938.32 = 220,637.51 : x
  2. Step 2: Convert to fraction form
    392,733.05/541,938.32 = 220,637.51/x
  3. Step 3: Cross multiply
    392,733.05x = 541,938.32 × 220,637.51
  4. Step 4: Simplify right side
    392,733.05x = 119,571,921,750.04
  5. Step 5: Solve for x
    x = 119,571,921,750.04/392,733.05
  6. Step 6: Final answer
    x = 304,461.07

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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.