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Finding the Fourth Proportional to 291,399.13, 436,792.51 and 133,497.73

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Solution

The fourth proportional to 291,399.13, 436,792.51 and 133,497.73 is: 200,106.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,399.13 : 436,792.51 = 133,497.73 : x
  2. Step 2: Convert to fraction form
    291,399.13/436,792.51 = 133,497.73/x
  3. Step 3: Cross multiply
    291,399.13x = 436,792.51 × 133,497.73
  4. Step 4: Simplify right side
    291,399.13x = 58,310,808,566.00
  5. Step 5: Solve for x
    x = 58,310,808,566.00/291,399.13
  6. Step 6: Final answer
    x = 200,106.32

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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.