Home / 291,868.67-437,971.79-123,378.05

Finding the Fourth Proportional to 291,868.67, 437,971.79 and 123,378.05

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Solution

The fourth proportional to 291,868.67, 437,971.79 and 123,378.05 is: 185,138.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,868.67 : 437,971.79 = 123,378.05 : x
  2. Step 2: Convert to fraction form
    291,868.67/437,971.79 = 123,378.05/x
  3. Step 3: Cross multiply
    291,868.67x = 437,971.79 × 123,378.05
  4. Step 4: Simplify right side
    291,868.67x = 54,036,106,808.58
  5. Step 5: Solve for x
    x = 54,036,106,808.58/291,868.67
  6. Step 6: Final answer
    x = 185,138.43

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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.