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Finding the Fourth Proportional to 291,940.66, 437,752.03 and 131,828.98

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Solution

The fourth proportional to 291,940.66, 437,752.03 and 131,828.98 is: 197,671.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,940.66 : 437,752.03 = 131,828.98 : x
  2. Step 2: Convert to fraction form
    291,940.66/437,752.03 = 131,828.98/x
  3. Step 3: Cross multiply
    291,940.66x = 437,752.03 × 131,828.98
  4. Step 4: Simplify right side
    291,940.66x = 57,708,403,607.83
  5. Step 5: Solve for x
    x = 57,708,403,607.83/291,940.66
  6. Step 6: Final answer
    x = 197,671.69

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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.