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Finding the Fourth Proportional to 661,841.72, 992,434.65 and 235,313.63

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Solution

The fourth proportional to 661,841.72, 992,434.65 and 235,313.63 is: 352,853.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,841.72 : 992,434.65 = 235,313.63 : x
  2. Step 2: Convert to fraction form
    661,841.72/992,434.65 = 235,313.63/x
  3. Step 3: Cross multiply
    661,841.72x = 992,434.65 × 235,313.63
  4. Step 4: Simplify right side
    661,841.72x = 233,533,395,067.11
  5. Step 5: Solve for x
    x = 233,533,395,067.11/661,841.72
  6. Step 6: Final answer
    x = 352,853.85

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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.