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Finding the Fourth Proportional to 291,627.40, 436,274.70 and 252,617.80

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Solution

The fourth proportional to 291,627.40, 436,274.70 and 252,617.80 is: 377,916.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,627.40 : 436,274.70 = 252,617.80 : x
  2. Step 2: Convert to fraction form
    291,627.40/436,274.70 = 252,617.80/x
  3. Step 3: Cross multiply
    291,627.40x = 436,274.70 × 252,617.80
  4. Step 4: Simplify right side
    291,627.40x = 110,210,754,909.66
  5. Step 5: Solve for x
    x = 110,210,754,909.66/291,627.40
  6. Step 6: Final answer
    x = 377,916.32

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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.