Home / 370,780.62-511,681.20-217,825.19

Finding the Fourth Proportional to 370,780.62, 511,681.20 and 217,825.19

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Solution

The fourth proportional to 370,780.62, 511,681.20 and 217,825.19 is: 300,601.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,780.62 : 511,681.20 = 217,825.19 : x
  2. Step 2: Convert to fraction form
    370,780.62/511,681.20 = 217,825.19/x
  3. Step 3: Cross multiply
    370,780.62x = 511,681.20 × 217,825.19
  4. Step 4: Simplify right side
    370,780.62x = 111,457,052,051.02
  5. Step 5: Solve for x
    x = 111,457,052,051.02/370,780.62
  6. Step 6: Final answer
    x = 300,601.07

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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.