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Finding the Fourth Proportional to 291,901.66, 437,870.94 and 123,390.57

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Solution

The fourth proportional to 291,901.66, 437,870.94 and 123,390.57 is: 185,093.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,901.66 : 437,870.94 = 123,390.57 : x
  2. Step 2: Convert to fraction form
    291,901.66/437,870.94 = 123,390.57/x
  3. Step 3: Cross multiply
    291,901.66x = 437,870.94 × 123,390.57
  4. Step 4: Simplify right side
    291,901.66x = 54,029,144,873.04
  5. Step 5: Solve for x
    x = 54,029,144,873.04/291,901.66
  6. Step 6: Final answer
    x = 185,093.66

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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.