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Finding the Fourth Proportional to 478,006.60, 717,029.69 and 141,047.25

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Solution

The fourth proportional to 478,006.60, 717,029.69 and 141,047.25 is: 211,576.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,006.60 : 717,029.69 = 141,047.25 : x
  2. Step 2: Convert to fraction form
    478,006.60/717,029.69 = 141,047.25/x
  3. Step 3: Cross multiply
    478,006.60x = 717,029.69 × 141,047.25
  4. Step 4: Simplify right side
    478,006.60x = 101,135,065,237.62
  5. Step 5: Solve for x
    x = 101,135,065,237.62/478,006.60
  6. Step 6: Final answer
    x = 211,576.71

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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.