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Finding the Fourth Proportional to 219,082.65, 302,333.30 and 122,285.66

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Solution

The fourth proportional to 219,082.65, 302,333.30 and 122,285.66 is: 168,753.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,082.65 : 302,333.30 = 122,285.66 : x
  2. Step 2: Convert to fraction form
    219,082.65/302,333.30 = 122,285.66/x
  3. Step 3: Cross multiply
    219,082.65x = 302,333.30 × 122,285.66
  4. Step 4: Simplify right side
    219,082.65x = 36,971,026,519.05
  5. Step 5: Solve for x
    x = 36,971,026,519.05/219,082.65
  6. Step 6: Final answer
    x = 168,753.79

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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.