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Finding the Fourth Proportional to 490,091.92, 735,239.88 and 153,118.96

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Solution

The fourth proportional to 490,091.92, 735,239.88 and 153,118.96 is: 229,710.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,091.92 : 735,239.88 = 153,118.96 : x
  2. Step 2: Convert to fraction form
    490,091.92/735,239.88 = 153,118.96/x
  3. Step 3: Cross multiply
    490,091.92x = 735,239.88 × 153,118.96
  4. Step 4: Simplify right side
    490,091.92x = 112,579,165,776.13
  5. Step 5: Solve for x
    x = 112,579,165,776.13/490,091.92
  6. Step 6: Final answer
    x = 229,710.31

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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.