Home / 370,968.91-511,890.55-220,036.75

Finding the Fourth Proportional to 370,968.91, 511,890.55 and 220,036.75

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Solution

The fourth proportional to 370,968.91, 511,890.55 and 220,036.75 is: 303,623.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,968.91 : 511,890.55 = 220,036.75 : x
  2. Step 2: Convert to fraction form
    370,968.91/511,890.55 = 220,036.75/x
  3. Step 3: Cross multiply
    370,968.91x = 511,890.55 × 220,036.75
  4. Step 4: Simplify right side
    370,968.91x = 112,634,732,977.71
  5. Step 5: Solve for x
    x = 112,634,732,977.71/370,968.91
  6. Step 6: Final answer
    x = 303,623.11

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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.