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Finding the Fourth Proportional to 188,506.50, 260,066.79 and 139,564.68

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Solution

The fourth proportional to 188,506.50, 260,066.79 and 139,564.68 is: 192,545.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,506.50 : 260,066.79 = 139,564.68 : x
  2. Step 2: Convert to fraction form
    188,506.50/260,066.79 = 139,564.68/x
  3. Step 3: Cross multiply
    188,506.50x = 260,066.79 × 139,564.68
  4. Step 4: Simplify right side
    188,506.50x = 36,296,138,324.98
  5. Step 5: Solve for x
    x = 36,296,138,324.98/188,506.50
  6. Step 6: Final answer
    x = 192,545.82

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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.