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Finding the Fourth Proportional to 255,538.84, 352,650.89 and 142,368.88

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Solution

The fourth proportional to 255,538.84, 352,650.89 and 142,368.88 is: 196,473.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,538.84 : 352,650.89 = 142,368.88 : x
  2. Step 2: Convert to fraction form
    255,538.84/352,650.89 = 142,368.88/x
  3. Step 3: Cross multiply
    255,538.84x = 352,650.89 × 142,368.88
  4. Step 4: Simplify right side
    255,538.84x = 50,206,512,240.30
  5. Step 5: Solve for x
    x = 50,206,512,240.30/255,538.84
  6. Step 6: Final answer
    x = 196,473.12

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1.5x scale

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.