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Finding the Fourth Proportional to 291,172.74, 436,759.11 and 133,401.18

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Solution

The fourth proportional to 291,172.74, 436,759.11 and 133,401.18 is: 200,101.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,172.74 : 436,759.11 = 133,401.18 : x
  2. Step 2: Convert to fraction form
    291,172.74/436,759.11 = 133,401.18/x
  3. Step 3: Cross multiply
    291,172.74x = 436,759.11 × 133,401.18
  4. Step 4: Simplify right side
    291,172.74x = 58,264,180,649.75
  5. Step 5: Solve for x
    x = 58,264,180,649.75/291,172.74
  6. Step 6: Final answer
    x = 200,101.77

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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.