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Finding the Fourth Proportional to 219,504.96, 302,939.28 and 158,301.72

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Solution

The fourth proportional to 219,504.96, 302,939.28 and 158,301.72 is: 218,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,504.96 : 302,939.28 = 158,301.72 : x
  2. Step 2: Convert to fraction form
    219,504.96/302,939.28 = 158,301.72/x
  3. Step 3: Cross multiply
    219,504.96x = 302,939.28 × 158,301.72
  4. Step 4: Simplify right side
    219,504.96x = 47,955,809,079.56
  5. Step 5: Solve for x
    x = 47,955,809,079.56/219,504.96
  6. Step 6: Final answer
    x = 218,472.55

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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.