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Finding the Fourth Proportional to 351,735.51, 527,762.43 and 138,444.69

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Solution

The fourth proportional to 351,735.51, 527,762.43 and 138,444.69 is: 207,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,735.51 : 527,762.43 = 138,444.69 : x
  2. Step 2: Convert to fraction form
    351,735.51/527,762.43 = 138,444.69/x
  3. Step 3: Cross multiply
    351,735.51x = 527,762.43 × 138,444.69
  4. Step 4: Simplify right side
    351,735.51x = 73,065,904,349.48
  5. Step 5: Solve for x
    x = 73,065,904,349.48/351,735.51
  6. Step 6: Final answer
    x = 207,729.68

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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.