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Finding the Fourth Proportional to 371,219.85, 556,899.03 and 171,408.24

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Solution

The fourth proportional to 371,219.85, 556,899.03 and 171,408.24 is: 257,144.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,219.85 : 556,899.03 = 171,408.24 : x
  2. Step 2: Convert to fraction form
    371,219.85/556,899.03 = 171,408.24/x
  3. Step 3: Cross multiply
    371,219.85x = 556,899.03 × 171,408.24
  4. Step 4: Simplify right side
    371,219.85x = 95,457,082,590.01
  5. Step 5: Solve for x
    x = 95,457,082,590.01/371,219.85
  6. Step 6: Final answer
    x = 257,144.34

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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.