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Finding the Fourth Proportional to 440,040.64, 607,239.84 and 238,832.32

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Solution

The fourth proportional to 440,040.64, 607,239.84 and 238,832.32 is: 329,579.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,040.64 : 607,239.84 = 238,832.32 : x
  2. Step 2: Convert to fraction form
    440,040.64/607,239.84 = 238,832.32/x
  3. Step 3: Cross multiply
    440,040.64x = 607,239.84 × 238,832.32
  4. Step 4: Simplify right side
    440,040.64x = 145,028,499,783.63
  5. Step 5: Solve for x
    x = 145,028,499,783.63/440,040.64
  6. Step 6: Final answer
    x = 329,579.79

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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.