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Finding the Fourth Proportional to 490,227.80, 735,342.27 and 153,270.21

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Solution

The fourth proportional to 490,227.80, 735,342.27 and 153,270.21 is: 229,905.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,227.80 : 735,342.27 = 153,270.21 : x
  2. Step 2: Convert to fraction form
    490,227.80/735,342.27 = 153,270.21/x
  3. Step 3: Cross multiply
    490,227.80x = 735,342.27 × 153,270.21
  4. Step 4: Simplify right side
    490,227.80x = 112,706,067,265.08
  5. Step 5: Solve for x
    x = 112,706,067,265.08/490,227.80
  6. Step 6: Final answer
    x = 229,905.50

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1.5x scale

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.