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Finding the Fourth Proportional to 405,498.52, 608,208.88 and 124,940.44

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Solution

The fourth proportional to 405,498.52, 608,208.88 and 124,940.44 is: 187,398.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,498.52 : 608,208.88 = 124,940.44 : x
  2. Step 2: Convert to fraction form
    405,498.52/608,208.88 = 124,940.44/x
  3. Step 3: Cross multiply
    405,498.52x = 608,208.88 × 124,940.44
  4. Step 4: Simplify right side
    405,498.52x = 75,989,885,079.11
  5. Step 5: Solve for x
    x = 75,989,885,079.11/405,498.52
  6. Step 6: Final answer
    x = 187,398.67

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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.