Home / 419,165.20-578,430.48-228,167.20

Finding the Fourth Proportional to 419,165.20, 578,430.48 and 228,167.20

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Solution

The fourth proportional to 419,165.20, 578,430.48 and 228,167.20 is: 314,861.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,165.20 : 578,430.48 = 228,167.20 : x
  2. Step 2: Convert to fraction form
    419,165.20/578,430.48 = 228,167.20/x
  3. Step 3: Cross multiply
    419,165.20x = 578,430.48 × 228,167.20
  4. Step 4: Simplify right side
    419,165.20x = 131,978,863,016.26
  5. Step 5: Solve for x
    x = 131,978,863,016.26/419,165.20
  6. Step 6: Final answer
    x = 314,861.21

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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.