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Finding the Fourth Proportional to 271,407.70, 407,111.55 and 187,426.90

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Solution

The fourth proportional to 271,407.70, 407,111.55 and 187,426.90 is: 281,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,407.70 : 407,111.55 = 187,426.90 : x
  2. Step 2: Convert to fraction form
    271,407.70/407,111.55 = 187,426.90/x
  3. Step 3: Cross multiply
    271,407.70x = 407,111.55 × 187,426.90
  4. Step 4: Simplify right side
    271,407.70x = 76,303,655,770.70
  5. Step 5: Solve for x
    x = 76,303,655,770.70/271,407.70
  6. Step 6: Final answer
    x = 281,140.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.