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Finding the Fourth Proportional to 255,082.88, 352,012.72 and 140,368.52

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Solution

The fourth proportional to 255,082.88, 352,012.72 and 140,368.52 is: 193,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,082.88 : 352,012.72 = 140,368.52 : x
  2. Step 2: Convert to fraction form
    255,082.88/352,012.72 = 140,368.52/x
  3. Step 3: Cross multiply
    255,082.88x = 352,012.72 × 140,368.52
  4. Step 4: Simplify right side
    255,082.88x = 49,411,504,527.57
  5. Step 5: Solve for x
    x = 49,411,504,527.57/255,082.88
  6. Step 6: Final answer
    x = 193,707.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.