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Finding the Fourth Proportional to 291,270.88, 437,076.15 and 122,780.89

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Solution

The fourth proportional to 291,270.88, 437,076.15 and 122,780.89 is: 184,242.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,270.88 : 437,076.15 = 122,780.89 : x
  2. Step 2: Convert to fraction form
    291,270.88/437,076.15 = 122,780.89/x
  3. Step 3: Cross multiply
    291,270.88x = 437,076.15 × 122,780.89
  4. Step 4: Simplify right side
    291,270.88x = 53,664,598,694.77
  5. Step 5: Solve for x
    x = 53,664,598,694.77/291,270.88
  6. Step 6: Final answer
    x = 184,242.92

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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.