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Finding the Fourth Proportional to 259,660.89, 358,333.08 and 140,428.89

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Solution

The fourth proportional to 259,660.89, 358,333.08 and 140,428.89 is: 193,792.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,660.89 : 358,333.08 = 140,428.89 : x
  2. Step 2: Convert to fraction form
    259,660.89/358,333.08 = 140,428.89/x
  3. Step 3: Cross multiply
    259,660.89x = 358,333.08 × 140,428.89
  4. Step 4: Simplify right side
    259,660.89x = 50,320,316,674.68
  5. Step 5: Solve for x
    x = 50,320,316,674.68/259,660.89
  6. Step 6: Final answer
    x = 193,792.44

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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.