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Finding the Fourth Proportional to 230,238.98, 317,645.52 and 139,529.51

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Solution

The fourth proportional to 230,238.98, 317,645.52 and 139,529.51 is: 192,499.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,238.98 : 317,645.52 = 139,529.51 : x
  2. Step 2: Convert to fraction form
    230,238.98/317,645.52 = 139,529.51/x
  3. Step 3: Cross multiply
    230,238.98x = 317,645.52 × 139,529.51
  4. Step 4: Simplify right side
    230,238.98x = 44,320,923,759.30
  5. Step 5: Solve for x
    x = 44,320,923,759.30/230,238.98
  6. Step 6: Final answer
    x = 192,499.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.