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Finding the Fourth Proportional to 291,738.60, 437,607.90 and 272,055.60

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Solution

The fourth proportional to 291,738.60, 437,607.90 and 272,055.60 is: 408,083.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,738.60 : 437,607.90 = 272,055.60 : x
  2. Step 2: Convert to fraction form
    291,738.60/437,607.90 = 272,055.60/x
  3. Step 3: Cross multiply
    291,738.60x = 437,607.90 × 272,055.60
  4. Step 4: Simplify right side
    291,738.60x = 119,053,679,799.24
  5. Step 5: Solve for x
    x = 119,053,679,799.24/291,738.60
  6. Step 6: Final answer
    x = 408,083.40

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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.