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Finding the Fourth Proportional to 255,545.90, 352,655.67 and 140,828.66

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Solution

The fourth proportional to 255,545.90, 352,655.67 and 140,828.66 is: 194,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,545.90 : 352,655.67 = 140,828.66 : x
  2. Step 2: Convert to fraction form
    255,545.90/352,655.67 = 140,828.66/x
  3. Step 3: Cross multiply
    255,545.90x = 352,655.67 × 140,828.66
  4. Step 4: Simplify right side
    255,545.90x = 49,664,025,447.50
  5. Step 5: Solve for x
    x = 49,664,025,447.50/255,545.90
  6. Step 6: Final answer
    x = 194,344.83

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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.