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Finding the Fourth Proportional to 291,711.40, 436,530.30 and 202,546.60

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Solution

The fourth proportional to 291,711.40, 436,530.30 and 202,546.60 is: 303,100.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,711.40 : 436,530.30 = 202,546.60 : x
  2. Step 2: Convert to fraction form
    291,711.40/436,530.30 = 202,546.60/x
  3. Step 3: Cross multiply
    291,711.40x = 436,530.30 × 202,546.60
  4. Step 4: Simplify right side
    291,711.40x = 88,417,728,061.98
  5. Step 5: Solve for x
    x = 88,417,728,061.98/291,711.40
  6. Step 6: Final answer
    x = 303,100.01

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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.