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Finding the Fourth Proportional to 490,627.80, 735,990.30 and 170,730.45

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Solution

The fourth proportional to 490,627.80, 735,990.30 and 170,730.45 is: 256,112.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,627.80 : 735,990.30 = 170,730.45 : x
  2. Step 2: Convert to fraction form
    490,627.80/735,990.30 = 170,730.45/x
  3. Step 3: Cross multiply
    490,627.80x = 735,990.30 × 170,730.45
  4. Step 4: Simplify right side
    490,627.80x = 125,655,955,114.64
  5. Step 5: Solve for x
    x = 125,655,955,114.64/490,627.80
  6. Step 6: Final answer
    x = 256,112.59

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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.