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Finding the Fourth Proportional to 395,236.67, 592,491.73 and 142,455.30

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Solution

The fourth proportional to 395,236.67, 592,491.73 and 142,455.30 is: 213,552.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,236.67 : 592,491.73 = 142,455.30 : x
  2. Step 2: Convert to fraction form
    395,236.67/592,491.73 = 142,455.30/x
  3. Step 3: Cross multiply
    395,236.67x = 592,491.73 × 142,455.30
  4. Step 4: Simplify right side
    395,236.67x = 84,403,584,182.21
  5. Step 5: Solve for x
    x = 84,403,584,182.21/395,236.67
  6. Step 6: Final answer
    x = 213,552.01

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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.