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Finding the Fourth Proportional to 234,967.26, 324,009.66 and 139,455.48

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Solution

The fourth proportional to 234,967.26, 324,009.66 and 139,455.48 is: 192,303.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,967.26 : 324,009.66 = 139,455.48 : x
  2. Step 2: Convert to fraction form
    234,967.26/324,009.66 = 139,455.48/x
  3. Step 3: Cross multiply
    234,967.26x = 324,009.66 × 139,455.48
  4. Step 4: Simplify right side
    234,967.26x = 45,184,922,659.94
  5. Step 5: Solve for x
    x = 45,184,922,659.94/234,967.26
  6. Step 6: Final answer
    x = 192,303.06

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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.