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Finding the Fourth Proportional to 640,279.67, 960,288.26 and 235,332.32

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Solution

The fourth proportional to 640,279.67, 960,288.26 and 235,332.32 is: 352,950.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,279.67 : 960,288.26 = 235,332.32 : x
  2. Step 2: Convert to fraction form
    640,279.67/960,288.26 = 235,332.32/x
  3. Step 3: Cross multiply
    640,279.67x = 960,288.26 × 235,332.32
  4. Step 4: Simplify right side
    640,279.67x = 225,986,858,116.46
  5. Step 5: Solve for x
    x = 225,986,858,116.46/640,279.67
  6. Step 6: Final answer
    x = 352,950.23

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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.