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Finding the Fourth Proportional to 255,508.92, 352,644.30 and 142,368.12

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Solution

The fourth proportional to 255,508.92, 352,644.30 and 142,368.12 is: 196,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,508.92 : 352,644.30 = 142,368.12 : x
  2. Step 2: Convert to fraction form
    255,508.92/352,644.30 = 142,368.12/x
  3. Step 3: Cross multiply
    255,508.92x = 352,644.30 × 142,368.12
  4. Step 4: Simplify right side
    255,508.92x = 50,205,306,019.72
  5. Step 5: Solve for x
    x = 50,205,306,019.72/255,508.92
  6. Step 6: Final answer
    x = 196,491.40

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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.