Home / 397,867.59-596,807.70-221,495.61

Finding the Fourth Proportional to 397,867.59, 596,807.70 and 221,495.61

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Solution

The fourth proportional to 397,867.59, 596,807.70 and 221,495.61 is: 332,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,867.59 : 596,807.70 = 221,495.61 : x
  2. Step 2: Convert to fraction form
    397,867.59/596,807.70 = 221,495.61/x
  3. Step 3: Cross multiply
    397,867.59x = 596,807.70 × 221,495.61
  4. Step 4: Simplify right side
    397,867.59x = 132,190,285,564.20
  5. Step 5: Solve for x
    x = 132,190,285,564.20/397,867.59
  6. Step 6: Final answer
    x = 332,246.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.