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Finding the Fourth Proportional to 440,376.48, 607,719.78 and 239,172.48

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Solution

The fourth proportional to 440,376.48, 607,719.78 and 239,172.48 is: 330,058.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,376.48 : 607,719.78 = 239,172.48 : x
  2. Step 2: Convert to fraction form
    440,376.48/607,719.78 = 239,172.48/x
  3. Step 3: Cross multiply
    440,376.48x = 607,719.78 × 239,172.48
  4. Step 4: Simplify right side
    440,376.48x = 145,349,846,927.65
  5. Step 5: Solve for x
    x = 145,349,846,927.65/440,376.48
  6. Step 6: Final answer
    x = 330,058.15

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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.