Home / 447,355.85-617,353.73-243,408.20

Finding the Fourth Proportional to 447,355.85, 617,353.73 and 243,408.20

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Solution

The fourth proportional to 447,355.85, 617,353.73 and 243,408.20 is: 335,904.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,355.85 : 617,353.73 = 243,408.20 : x
  2. Step 2: Convert to fraction form
    447,355.85/617,353.73 = 243,408.20/x
  3. Step 3: Cross multiply
    447,355.85x = 617,353.73 × 243,408.20
  4. Step 4: Simplify right side
    447,355.85x = 150,268,955,878.78
  5. Step 5: Solve for x
    x = 150,268,955,878.78/447,355.85
  6. Step 6: Final answer
    x = 335,904.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.