Home / 398,828.44-550,384.95-217,544.23

Finding the Fourth Proportional to 398,828.44, 550,384.95 and 217,544.23

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Solution

The fourth proportional to 398,828.44, 550,384.95 and 217,544.23 is: 300,211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,828.44 : 550,384.95 = 217,544.23 : x
  2. Step 2: Convert to fraction form
    398,828.44/550,384.95 = 217,544.23/x
  3. Step 3: Cross multiply
    398,828.44x = 550,384.95 × 217,544.23
  4. Step 4: Simplify right side
    398,828.44x = 119,733,070,151.34
  5. Step 5: Solve for x
    x = 119,733,070,151.34/398,828.44
  6. Step 6: Final answer
    x = 300,211.97

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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.