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Finding the Fourth Proportional to 255,645.07, 352,774.05 and 140,917.39

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Solution

The fourth proportional to 255,645.07, 352,774.05 and 140,917.39 is: 194,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,645.07 : 352,774.05 = 140,917.39 : x
  2. Step 2: Convert to fraction form
    255,645.07/352,774.05 = 140,917.39/x
  3. Step 3: Cross multiply
    255,645.07x = 352,774.05 × 140,917.39
  4. Step 4: Simplify right side
    255,645.07x = 49,711,998,385.73
  5. Step 5: Solve for x
    x = 49,711,998,385.73/255,645.07
  6. Step 6: Final answer
    x = 194,457.10

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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.