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Finding the Fourth Proportional to 228,616.88, 342,922.76 and 80,838.32

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Solution

The fourth proportional to 228,616.88, 342,922.76 and 80,838.32 is: 121,256.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,616.88 : 342,922.76 = 80,838.32 : x
  2. Step 2: Convert to fraction form
    228,616.88/342,922.76 = 80,838.32/x
  3. Step 3: Cross multiply
    228,616.88x = 342,922.76 × 80,838.32
  4. Step 4: Simplify right side
    228,616.88x = 27,721,299,808.16
  5. Step 5: Solve for x
    x = 27,721,299,808.16/228,616.88
  6. Step 6: Final answer
    x = 121,256.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.