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Finding the Fourth Proportional to 619,322.10, 929,010.15 and 170,031.30

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Solution

The fourth proportional to 619,322.10, 929,010.15 and 170,031.30 is: 255,054.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,322.10 : 929,010.15 = 170,031.30 : x
  2. Step 2: Convert to fraction form
    619,322.10/929,010.15 = 170,031.30/x
  3. Step 3: Cross multiply
    619,322.10x = 929,010.15 × 170,031.30
  4. Step 4: Simplify right side
    619,322.10x = 157,960,803,517.70
  5. Step 5: Solve for x
    x = 157,960,803,517.70/619,322.10
  6. Step 6: Final answer
    x = 255,054.36

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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.