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Finding the Fourth Proportional to 216,363.48, 298,545.12 and 120,870.96

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Solution

The fourth proportional to 216,363.48, 298,545.12 and 120,870.96 is: 166,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,363.48 : 298,545.12 = 120,870.96 : x
  2. Step 2: Convert to fraction form
    216,363.48/298,545.12 = 120,870.96/x
  3. Step 3: Cross multiply
    216,363.48x = 298,545.12 × 120,870.96
  4. Step 4: Simplify right side
    216,363.48x = 36,085,435,257.72
  5. Step 5: Solve for x
    x = 36,085,435,257.72/216,363.48
  6. Step 6: Final answer
    x = 166,781.54

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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.