Home / 228,294.98-315,041-126,317.78

Finding the Fourth Proportional to 228,294.98, 315,041 and 126,317.78

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Solution

The fourth proportional to 228,294.98, 315,041 and 126,317.78 is: 174,315.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,294.98 : 315,041 = 126,317.78 : x
  2. Step 2: Convert to fraction form
    228,294.98/315,041 = 126,317.78/x
  3. Step 3: Cross multiply
    228,294.98x = 315,041 × 126,317.78
  4. Step 4: Simplify right side
    228,294.98x = 39,795,279,728.98
  5. Step 5: Solve for x
    x = 39,795,279,728.98/228,294.98
  6. Step 6: Final answer
    x = 174,315.18

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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.