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Finding the Fourth Proportional to 296,717.56, 445,661.70 and 254,938.84

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Solution

The fourth proportional to 296,717.56, 445,661.70 and 254,938.84 is: 382,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,717.56 : 445,661.70 = 254,938.84 : x
  2. Step 2: Convert to fraction form
    296,717.56/445,661.70 = 254,938.84/x
  3. Step 3: Cross multiply
    296,717.56x = 445,661.70 × 254,938.84
  4. Step 4: Simplify right side
    296,717.56x = 113,616,476,830.43
  5. Step 5: Solve for x
    x = 113,616,476,830.43/296,717.56
  6. Step 6: Final answer
    x = 382,911.20

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1.5x scale

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.