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Finding the Fourth Proportional to 291,381.60, 436,294.80 and 291,381.60

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Solution

The fourth proportional to 291,381.60, 436,294.80 and 291,381.60 is: 436,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,381.60 : 436,294.80 = 291,381.60 : x
  2. Step 2: Convert to fraction form
    291,381.60/436,294.80 = 291,381.60/x
  3. Step 3: Cross multiply
    291,381.60x = 436,294.80 × 291,381.60
  4. Step 4: Simplify right side
    291,381.60x = 127,128,276,895.68
  5. Step 5: Solve for x
    x = 127,128,276,895.68/291,381.60
  6. Step 6: Final answer
    x = 436,294.80

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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.