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Finding the Fourth Proportional to 490,671.24, 736,089.78 and 153,645.42

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Solution

The fourth proportional to 490,671.24, 736,089.78 and 153,645.42 is: 230,494.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,671.24 : 736,089.78 = 153,645.42 : x
  2. Step 2: Convert to fraction form
    490,671.24/736,089.78 = 153,645.42/x
  3. Step 3: Cross multiply
    490,671.24x = 736,089.78 × 153,645.42
  4. Step 4: Simplify right side
    490,671.24x = 113,096,823,405.81
  5. Step 5: Solve for x
    x = 113,096,823,405.81/490,671.24
  6. Step 6: Final answer
    x = 230,494.09

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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.