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Finding the Fourth Proportional to 291,886.64, 437,907.96 and 104,899.76

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Solution

The fourth proportional to 291,886.64, 437,907.96 and 104,899.76 is: 157,377.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,886.64 : 437,907.96 = 104,899.76 : x
  2. Step 2: Convert to fraction form
    291,886.64/437,907.96 = 104,899.76/x
  3. Step 3: Cross multiply
    291,886.64x = 437,907.96 × 104,899.76
  4. Step 4: Simplify right side
    291,886.64x = 45,936,439,906.09
  5. Step 5: Solve for x
    x = 45,936,439,906.09/291,886.64
  6. Step 6: Final answer
    x = 157,377.67

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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.