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Finding the Fourth Proportional to 379,301.73, 523,446.65 and 226,428.63

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Solution

The fourth proportional to 379,301.73, 523,446.65 and 226,428.63 is: 312,477.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,301.73 : 523,446.65 = 226,428.63 : x
  2. Step 2: Convert to fraction form
    379,301.73/523,446.65 = 226,428.63/x
  3. Step 3: Cross multiply
    379,301.73x = 523,446.65 × 226,428.63
  4. Step 4: Simplify right side
    379,301.73x = 118,523,307,837.59
  5. Step 5: Solve for x
    x = 118,523,307,837.59/379,301.73
  6. Step 6: Final answer
    x = 312,477.64

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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.