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Finding the Fourth Proportional to 338,803, 508,215.03 and 125,623.96

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Solution

The fourth proportional to 338,803, 508,215.03 and 125,623.96 is: 188,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,803 : 508,215.03 = 125,623.96 : x
  2. Step 2: Convert to fraction form
    338,803/508,215.03 = 125,623.96/x
  3. Step 3: Cross multiply
    338,803x = 508,215.03 × 125,623.96
  4. Step 4: Simplify right side
    338,803x = 63,843,984,600.12
  5. Step 5: Solve for x
    x = 63,843,984,600.12/338,803
  6. Step 6: Final answer
    x = 188,439.84

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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.