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Finding the Fourth Proportional to 330,142.92, 456,009.52 and 254,579.64

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Solution

The fourth proportional to 330,142.92, 456,009.52 and 254,579.64 is: 351,637.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,142.92 : 456,009.52 = 254,579.64 : x
  2. Step 2: Convert to fraction form
    330,142.92/456,009.52 = 254,579.64/x
  3. Step 3: Cross multiply
    330,142.92x = 456,009.52 × 254,579.64
  4. Step 4: Simplify right side
    330,142.92x = 116,090,739,438.17
  5. Step 5: Solve for x
    x = 116,090,739,438.17/330,142.92
  6. Step 6: Final answer
    x = 351,637.83

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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.