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Finding the Fourth Proportional to 271,401.64, 374,478.19 and 156,678.30

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Solution

The fourth proportional to 271,401.64, 374,478.19 and 156,678.30 is: 216,183.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,401.64 : 374,478.19 = 156,678.30 : x
  2. Step 2: Convert to fraction form
    271,401.64/374,478.19 = 156,678.30/x
  3. Step 3: Cross multiply
    271,401.64x = 374,478.19 × 156,678.30
  4. Step 4: Simplify right side
    271,401.64x = 58,672,605,804.58
  5. Step 5: Solve for x
    x = 58,672,605,804.58/271,401.64
  6. Step 6: Final answer
    x = 216,183.68

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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.