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Finding the Fourth Proportional to 299,620.34, 413,478.21 and 165,484.34

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Solution

The fourth proportional to 299,620.34, 413,478.21 and 165,484.34 is: 228,369.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,620.34 : 413,478.21 = 165,484.34 : x
  2. Step 2: Convert to fraction form
    299,620.34/413,478.21 = 165,484.34/x
  3. Step 3: Cross multiply
    299,620.34x = 413,478.21 × 165,484.34
  4. Step 4: Simplify right side
    299,620.34x = 68,424,168,686.23
  5. Step 5: Solve for x
    x = 68,424,168,686.23/299,620.34
  6. Step 6: Final answer
    x = 228,369.57

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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.