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Finding the Fourth Proportional to 442,497.78, 610,699.32 and 251,539.92

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Solution

The fourth proportional to 442,497.78, 610,699.32 and 251,539.92 is: 347,154.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,497.78 : 610,699.32 = 251,539.92 : x
  2. Step 2: Convert to fraction form
    442,497.78/610,699.32 = 251,539.92/x
  3. Step 3: Cross multiply
    442,497.78x = 610,699.32 × 251,539.92
  4. Step 4: Simplify right side
    442,497.78x = 153,615,258,096.85
  5. Step 5: Solve for x
    x = 153,615,258,096.85/442,497.78
  6. Step 6: Final answer
    x = 347,154.87

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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.