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Finding the Fourth Proportional to 351,570.77, 527,359.49 and 85,333.69

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Solution

The fourth proportional to 351,570.77, 527,359.49 and 85,333.69 is: 128,001.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,570.77 : 527,359.49 = 85,333.69 : x
  2. Step 2: Convert to fraction form
    351,570.77/527,359.49 = 85,333.69/x
  3. Step 3: Cross multiply
    351,570.77x = 527,359.49 × 85,333.69
  4. Step 4: Simplify right side
    351,570.77x = 45,001,531,238.22
  5. Step 5: Solve for x
    x = 45,001,531,238.22/351,570.77
  6. Step 6: Final answer
    x = 128,001.34

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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.