Home / 370,487.23-511,272.88-200,721.36

Finding the Fourth Proportional to 370,487.23, 511,272.88 and 200,721.36

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Solution

The fourth proportional to 370,487.23, 511,272.88 and 200,721.36 is: 276,995.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,487.23 : 511,272.88 = 200,721.36 : x
  2. Step 2: Convert to fraction form
    370,487.23/511,272.88 = 200,721.36/x
  3. Step 3: Cross multiply
    370,487.23x = 511,272.88 × 200,721.36
  4. Step 4: Simplify right side
    370,487.23x = 102,623,387,804.72
  5. Step 5: Solve for x
    x = 102,623,387,804.72/370,487.23
  6. Step 6: Final answer
    x = 276,995.75

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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.