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Finding the Fourth Proportional to 331,958.76, 458,100.93 and 188,718.84

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Solution

The fourth proportional to 331,958.76, 458,100.93 and 188,718.84 is: 260,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,958.76 : 458,100.93 = 188,718.84 : x
  2. Step 2: Convert to fraction form
    331,958.76/458,100.93 = 188,718.84/x
  3. Step 3: Cross multiply
    331,958.76x = 458,100.93 × 188,718.84
  4. Step 4: Simplify right side
    331,958.76x = 86,452,276,112.52
  5. Step 5: Solve for x
    x = 86,452,276,112.52/331,958.76
  6. Step 6: Final answer
    x = 260,430.77

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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.