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Finding the Fourth Proportional to 619,322.60, 929,010.90 and 170,031.80

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Solution

The fourth proportional to 619,322.60, 929,010.90 and 170,031.80 is: 255,055.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,322.60 : 929,010.90 = 170,031.80 : x
  2. Step 2: Convert to fraction form
    619,322.60/929,010.90 = 170,031.80/x
  3. Step 3: Cross multiply
    619,322.60x = 929,010.90 × 170,031.80
  4. Step 4: Simplify right side
    619,322.60x = 157,961,395,546.62
  5. Step 5: Solve for x
    x = 157,961,395,546.62/619,322.60
  6. Step 6: Final answer
    x = 255,055.11

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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.