Home / 370,983.88-511,957.82-209,835.46

Finding the Fourth Proportional to 370,983.88, 511,957.82 and 209,835.46

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Solution

The fourth proportional to 370,983.88, 511,957.82 and 209,835.46 is: 289,572.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,983.88 : 511,957.82 = 209,835.46 : x
  2. Step 2: Convert to fraction form
    370,983.88/511,957.82 = 209,835.46/x
  3. Step 3: Cross multiply
    370,983.88x = 511,957.82 × 209,835.46
  4. Step 4: Simplify right side
    370,983.88x = 107,426,901,051.33
  5. Step 5: Solve for x
    x = 107,426,901,051.33/370,983.88
  6. Step 6: Final answer
    x = 289,572.97

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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.