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Finding the Fourth Proportional to 219,062.43, 302,307.39 and 122,270.67

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Solution

The fourth proportional to 219,062.43, 302,307.39 and 122,270.67 is: 168,734.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,062.43 : 302,307.39 = 122,270.67 : x
  2. Step 2: Convert to fraction form
    219,062.43/302,307.39 = 122,270.67/x
  3. Step 3: Cross multiply
    219,062.43x = 302,307.39 × 122,270.67
  4. Step 4: Simplify right side
    219,062.43x = 36,963,327,121.25
  5. Step 5: Solve for x
    x = 36,963,327,121.25/219,062.43
  6. Step 6: Final answer
    x = 168,734.21

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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.