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Finding the Fourth Proportional to 490,625.70, 736,026.03 and 135,631.86

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Solution

The fourth proportional to 490,625.70, 736,026.03 and 135,631.86 is: 203,471.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,625.70 : 736,026.03 = 135,631.86 : x
  2. Step 2: Convert to fraction form
    490,625.70/736,026.03 = 135,631.86/x
  3. Step 3: Cross multiply
    490,625.70x = 736,026.03 × 135,631.86
  4. Step 4: Simplify right side
    490,625.70x = 99,828,579,457.32
  5. Step 5: Solve for x
    x = 99,828,579,457.32/490,625.70
  6. Step 6: Final answer
    x = 203,471.97

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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.