Home / 379,263.19-523,399.11-218,118.36

Finding the Fourth Proportional to 379,263.19, 523,399.11 and 218,118.36

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Solution

The fourth proportional to 379,263.19, 523,399.11 and 218,118.36 is: 301,012.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,263.19 : 523,399.11 = 218,118.36 : x
  2. Step 2: Convert to fraction form
    379,263.19/523,399.11 = 218,118.36/x
  3. Step 3: Cross multiply
    379,263.19x = 523,399.11 × 218,118.36
  4. Step 4: Simplify right side
    379,263.19x = 114,162,955,498.66
  5. Step 5: Solve for x
    x = 114,162,955,498.66/379,263.19
  6. Step 6: Final answer
    x = 301,012.49

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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.