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Finding the Fourth Proportional to 440,345.30, 607,679.63 and 239,141.30

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Solution

The fourth proportional to 440,345.30, 607,679.63 and 239,141.30 is: 330,016.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,345.30 : 607,679.63 = 239,141.30 : x
  2. Step 2: Convert to fraction form
    440,345.30/607,679.63 = 239,141.30/x
  3. Step 3: Cross multiply
    440,345.30x = 607,679.63 × 239,141.30
  4. Step 4: Simplify right side
    440,345.30x = 145,321,292,467.61
  5. Step 5: Solve for x
    x = 145,321,292,467.61/440,345.30
  6. Step 6: Final answer
    x = 330,016.68

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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.