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Finding the Fourth Proportional to 255,307.42, 352,321.27 and 140,583.68

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Solution

The fourth proportional to 255,307.42, 352,321.27 and 140,583.68 is: 194,003.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,307.42 : 352,321.27 = 140,583.68 : x
  2. Step 2: Convert to fraction form
    255,307.42/352,321.27 = 140,583.68/x
  3. Step 3: Cross multiply
    255,307.42x = 352,321.27 × 140,583.68
  4. Step 4: Simplify right side
    255,307.42x = 49,530,618,565.81
  5. Step 5: Solve for x
    x = 49,530,618,565.81/255,307.42
  6. Step 6: Final answer
    x = 194,003.84

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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.