Home / 291,105.84-436,511.16-133,199.04

Finding the Fourth Proportional to 291,105.84, 436,511.16 and 133,199.04

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Solution

The fourth proportional to 291,105.84, 436,511.16 and 133,199.04 is: 199,731.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,105.84 : 436,511.16 = 133,199.04 : x
  2. Step 2: Convert to fraction form
    291,105.84/436,511.16 = 133,199.04/x
  3. Step 3: Cross multiply
    291,105.84x = 436,511.16 × 133,199.04
  4. Step 4: Simplify right side
    291,105.84x = 58,142,867,461.29
  5. Step 5: Solve for x
    x = 58,142,867,461.29/291,105.84
  6. Step 6: Final answer
    x = 199,731.02

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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.