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Finding the Fourth Proportional to 271,434.78, 374,597.19 and 156,734.73

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Solution

The fourth proportional to 271,434.78, 374,597.19 and 156,734.73 is: 216,303.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,434.78 : 374,597.19 = 156,734.73 : x
  2. Step 2: Convert to fraction form
    271,434.78/374,597.19 = 156,734.73/x
  3. Step 3: Cross multiply
    271,434.78x = 374,597.19 × 156,734.73
  4. Step 4: Simplify right side
    271,434.78x = 58,712,389,433.41
  5. Step 5: Solve for x
    x = 58,712,389,433.41/271,434.78
  6. Step 6: Final answer
    x = 216,303.86

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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.