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Finding the Fourth Proportional to 490,228.80, 735,343.77 and 153,271.21

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Solution

The fourth proportional to 490,228.80, 735,343.77 and 153,271.21 is: 229,906.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,228.80 : 735,343.77 = 153,271.21 : x
  2. Step 2: Convert to fraction form
    490,228.80/735,343.77 = 153,271.21/x
  3. Step 3: Cross multiply
    490,228.80x = 735,343.77 × 153,271.21
  4. Step 4: Simplify right side
    490,228.80x = 112,707,029,393.86
  5. Step 5: Solve for x
    x = 112,707,029,393.86/490,228.80
  6. Step 6: Final answer
    x = 229,906.99

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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.