Home / 305,218.10-458,045.85-171,956.90

Finding the Fourth Proportional to 305,218.10, 458,045.85 and 171,956.90

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Solution

The fourth proportional to 305,218.10, 458,045.85 and 171,956.90 is: 258,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,218.10 : 458,045.85 = 171,956.90 : x
  2. Step 2: Convert to fraction form
    305,218.10/458,045.85 = 171,956.90/x
  3. Step 3: Cross multiply
    305,218.10x = 458,045.85 × 171,956.90
  4. Step 4: Simplify right side
    305,218.10x = 78,764,144,423.87
  5. Step 5: Solve for x
    x = 78,764,144,423.87/305,218.10
  6. Step 6: Final answer
    x = 258,058.56

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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.