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Finding the Fourth Proportional to 219,423.53, 302,800.17 and 122,628.28

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Solution

The fourth proportional to 219,423.53, 302,800.17 and 122,628.28 is: 169,224.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,423.53 : 302,800.17 = 122,628.28 : x
  2. Step 2: Convert to fraction form
    219,423.53/302,800.17 = 122,628.28/x
  3. Step 3: Cross multiply
    219,423.53x = 302,800.17 × 122,628.28
  4. Step 4: Simplify right side
    219,423.53x = 37,131,864,301.41
  5. Step 5: Solve for x
    x = 37,131,864,301.41/219,423.53
  6. Step 6: Final answer
    x = 169,224.62

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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.