Home / 277,821.26-416,731.89-67,457.78

Finding the Fourth Proportional to 277,821.26, 416,731.89 and 67,457.78

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Solution

The fourth proportional to 277,821.26, 416,731.89 and 67,457.78 is: 101,186.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,821.26 : 416,731.89 = 67,457.78 : x
  2. Step 2: Convert to fraction form
    277,821.26/416,731.89 = 67,457.78/x
  3. Step 3: Cross multiply
    277,821.26x = 416,731.89 × 67,457.78
  4. Step 4: Simplify right side
    277,821.26x = 28,111,808,154.60
  5. Step 5: Solve for x
    x = 28,111,808,154.60/277,821.26
  6. Step 6: Final answer
    x = 101,186.67

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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.