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Finding the Fourth Proportional to 188,683.29, 260,384.90 and 108,109.08

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Solution

The fourth proportional to 188,683.29, 260,384.90 and 108,109.08 is: 149,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,683.29 : 260,384.90 = 108,109.08 : x
  2. Step 2: Convert to fraction form
    188,683.29/260,384.90 = 108,109.08/x
  3. Step 3: Cross multiply
    188,683.29x = 260,384.90 × 108,109.08
  4. Step 4: Simplify right side
    188,683.29x = 28,149,971,444.35
  5. Step 5: Solve for x
    x = 28,149,971,444.35/188,683.29
  6. Step 6: Final answer
    x = 149,191.65

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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.