Home / 219,629.16-303,142.50-144,279.72

Finding the Fourth Proportional to 219,629.16, 303,142.50 and 144,279.72

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Solution

The fourth proportional to 219,629.16, 303,142.50 and 144,279.72 is: 199,141.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,629.16 : 303,142.50 = 144,279.72 : x
  2. Step 2: Convert to fraction form
    219,629.16/303,142.50 = 144,279.72/x
  3. Step 3: Cross multiply
    219,629.16x = 303,142.50 × 144,279.72
  4. Step 4: Simplify right side
    219,629.16x = 43,737,315,020.10
  5. Step 5: Solve for x
    x = 43,737,315,020.10/219,629.16
  6. Step 6: Final answer
    x = 199,141.66

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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.