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Finding the Fourth Proportional to 219,429.72, 302,713.66 and 192,489.12

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Solution

The fourth proportional to 219,429.72, 302,713.66 and 192,489.12 is: 265,547.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,429.72 : 302,713.66 = 192,489.12 : x
  2. Step 2: Convert to fraction form
    219,429.72/302,713.66 = 192,489.12/x
  3. Step 3: Cross multiply
    219,429.72x = 302,713.66 × 192,489.12
  4. Step 4: Simplify right side
    219,429.72x = 58,269,086,025.38
  5. Step 5: Solve for x
    x = 58,269,086,025.38/219,429.72
  6. Step 6: Final answer
    x = 265,547.83

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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.