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Finding the Fourth Proportional to 490,011.26, 735,109.80 and 170,150.66

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Solution

The fourth proportional to 490,011.26, 735,109.80 and 170,150.66 is: 255,258.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,011.26 : 735,109.80 = 170,150.66 : x
  2. Step 2: Convert to fraction form
    490,011.26/735,109.80 = 170,150.66/x
  3. Step 3: Cross multiply
    490,011.26x = 735,109.80 × 170,150.66
  4. Step 4: Simplify right side
    490,011.26x = 125,079,417,642.47
  5. Step 5: Solve for x
    x = 125,079,417,642.47/490,011.26
  6. Step 6: Final answer
    x = 255,258.25

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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.