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Finding the Fourth Proportional to 440,316, 607,636.08 and 239,112

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Solution

The fourth proportional to 440,316, 607,636.08 and 239,112 is: 329,974.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,316 : 607,636.08 = 239,112 : x
  2. Step 2: Convert to fraction form
    440,316/607,636.08 = 239,112/x
  3. Step 3: Cross multiply
    440,316x = 607,636.08 × 239,112
  4. Step 4: Simplify right side
    440,316x = 145,293,078,360.96
  5. Step 5: Solve for x
    x = 145,293,078,360.96/440,316
  6. Step 6: Final answer
    x = 329,974.56

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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.