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Finding the Fourth Proportional to 308,958.30, 463,437.45 and 238,974.30

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Solution

The fourth proportional to 308,958.30, 463,437.45 and 238,974.30 is: 358,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,958.30 : 463,437.45 = 238,974.30 : x
  2. Step 2: Convert to fraction form
    308,958.30/463,437.45 = 238,974.30/x
  3. Step 3: Cross multiply
    308,958.30x = 463,437.45 × 238,974.30
  4. Step 4: Simplify right side
    308,958.30x = 110,749,640,207.54
  5. Step 5: Solve for x
    x = 110,749,640,207.54/308,958.30
  6. Step 6: Final answer
    x = 358,461.45

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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.