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Finding the Fourth Proportional to 219,449.85, 302,719.53 and 178,657.86

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Solution

The fourth proportional to 219,449.85, 302,719.53 and 178,657.86 is: 246,449.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,449.85 : 302,719.53 = 178,657.86 : x
  2. Step 2: Convert to fraction form
    219,449.85/302,719.53 = 178,657.86/x
  3. Step 3: Cross multiply
    219,449.85x = 302,719.53 × 178,657.86
  4. Step 4: Simplify right side
    219,449.85x = 54,083,223,410.01
  5. Step 5: Solve for x
    x = 54,083,223,410.01/219,449.85
  6. Step 6: Final answer
    x = 246,449.12

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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.