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Finding the Fourth Proportional to 291,373.79, 436,238.94 and 154,286.24

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Solution

The fourth proportional to 291,373.79, 436,238.94 and 154,286.24 is: 230,994.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,373.79 : 436,238.94 = 154,286.24 : x
  2. Step 2: Convert to fraction form
    291,373.79/436,238.94 = 154,286.24/x
  3. Step 3: Cross multiply
    291,373.79x = 436,238.94 × 154,286.24
  4. Step 4: Simplify right side
    291,373.79x = 67,305,666,884.78
  5. Step 5: Solve for x
    x = 67,305,666,884.78/291,373.79
  6. Step 6: Final answer
    x = 230,994.24

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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.