Home / 291,128.04-436,544.34-133,221.18

Finding the Fourth Proportional to 291,128.04, 436,544.34 and 133,221.18

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Solution

The fourth proportional to 291,128.04, 436,544.34 and 133,221.18 is: 199,764.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,128.04 : 436,544.34 = 133,221.18 : x
  2. Step 2: Convert to fraction form
    291,128.04/436,544.34 = 133,221.18/x
  3. Step 3: Cross multiply
    291,128.04x = 436,544.34 × 133,221.18
  4. Step 4: Simplify right side
    291,128.04x = 58,156,952,097.12
  5. Step 5: Solve for x
    x = 58,156,952,097.12/291,128.04
  6. Step 6: Final answer
    x = 199,764.17

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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.