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Finding the Fourth Proportional to 478,071.06, 717,100.11 and 162,747.78

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Solution

The fourth proportional to 478,071.06, 717,100.11 and 162,747.78 is: 244,119.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,071.06 : 717,100.11 = 162,747.78 : x
  2. Step 2: Convert to fraction form
    478,071.06/717,100.11 = 162,747.78/x
  3. Step 3: Cross multiply
    478,071.06x = 717,100.11 × 162,747.78
  4. Step 4: Simplify right side
    478,071.06x = 116,706,450,940.26
  5. Step 5: Solve for x
    x = 116,706,450,940.26/478,071.06
  6. Step 6: Final answer
    x = 244,119.46

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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.