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Finding the Fourth Proportional to 478,083.39, 717,177.63 and 158,118.71

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Solution

The fourth proportional to 478,083.39, 717,177.63 and 158,118.71 is: 237,195.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,083.39 : 717,177.63 = 158,118.71 : x
  2. Step 2: Convert to fraction form
    478,083.39/717,177.63 = 158,118.71/x
  3. Step 3: Cross multiply
    478,083.39x = 717,177.63 × 158,118.71
  4. Step 4: Simplify right side
    478,083.39x = 113,399,203,420.57
  5. Step 5: Solve for x
    x = 113,399,203,420.57/478,083.39
  6. Step 6: Final answer
    x = 237,195.45

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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.