Home / 370,743.06-511,605.53-209,588.50

Finding the Fourth Proportional to 370,743.06, 511,605.53 and 209,588.50

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Solution

The fourth proportional to 370,743.06, 511,605.53 and 209,588.50 is: 289,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,743.06 : 511,605.53 = 209,588.50 : x
  2. Step 2: Convert to fraction form
    370,743.06/511,605.53 = 209,588.50/x
  3. Step 3: Cross multiply
    370,743.06x = 511,605.53 × 209,588.50
  4. Step 4: Simplify right side
    370,743.06x = 107,226,635,624.41
  5. Step 5: Solve for x
    x = 107,226,635,624.41/370,743.06
  6. Step 6: Final answer
    x = 289,220.88

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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.