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Finding the Fourth Proportional to 387,576.86, 581,365.56 and 107,094.38

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Solution

The fourth proportional to 387,576.86, 581,365.56 and 107,094.38 is: 160,641.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,576.86 : 581,365.56 = 107,094.38 : x
  2. Step 2: Convert to fraction form
    387,576.86/581,365.56 = 107,094.38/x
  3. Step 3: Cross multiply
    387,576.86x = 581,365.56 × 107,094.38
  4. Step 4: Simplify right side
    387,576.86x = 62,260,984,201.55
  5. Step 5: Solve for x
    x = 62,260,984,201.55/387,576.86
  6. Step 6: Final answer
    x = 160,641.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.