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Finding the Fourth Proportional to 661,571.76, 992,226.48 and 188,261.28

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Solution

The fourth proportional to 661,571.76, 992,226.48 and 188,261.28 is: 282,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,571.76 : 992,226.48 = 188,261.28 : x
  2. Step 2: Convert to fraction form
    661,571.76/992,226.48 = 188,261.28/x
  3. Step 3: Cross multiply
    661,571.76x = 992,226.48 × 188,261.28
  4. Step 4: Simplify right side
    661,571.76x = 186,797,827,174.69
  5. Step 5: Solve for x
    x = 186,797,827,174.69/661,571.76
  6. Step 6: Final answer
    x = 282,354.60

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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.