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Finding the Fourth Proportional to 330,143.92, 456,010.90 and 254,580.64

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Solution

The fourth proportional to 330,143.92, 456,010.90 and 254,580.64 is: 351,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,143.92 : 456,010.90 = 254,580.64 : x
  2. Step 2: Convert to fraction form
    330,143.92/456,010.90 = 254,580.64/x
  3. Step 3: Cross multiply
    330,143.92x = 456,010.90 × 254,580.64
  4. Step 4: Simplify right side
    330,143.92x = 116,091,546,768.98
  5. Step 5: Solve for x
    x = 116,091,546,768.98/330,143.92
  6. Step 6: Final answer
    x = 351,639.21

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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.