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Finding the Fourth Proportional to 255,209.81, 352,209.87 and 147,781.73

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Solution

The fourth proportional to 255,209.81, 352,209.87 and 147,781.73 is: 203,950.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,209.81 : 352,209.87 = 147,781.73 : x
  2. Step 2: Convert to fraction form
    255,209.81/352,209.87 = 147,781.73/x
  3. Step 3: Cross multiply
    255,209.81x = 352,209.87 × 147,781.73
  4. Step 4: Simplify right side
    255,209.81x = 52,050,184,792.20
  5. Step 5: Solve for x
    x = 52,050,184,792.20/255,209.81
  6. Step 6: Final answer
    x = 203,950.57

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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.