Home / 277,830.98-416,771.02-78,153.02

Finding the Fourth Proportional to 277,830.98, 416,771.02 and 78,153.02

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Solution

The fourth proportional to 277,830.98, 416,771.02 and 78,153.02 is: 117,236.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,830.98 : 416,771.02 = 78,153.02 : x
  2. Step 2: Convert to fraction form
    277,830.98/416,771.02 = 78,153.02/x
  3. Step 3: Cross multiply
    277,830.98x = 416,771.02 × 78,153.02
  4. Step 4: Simplify right side
    277,830.98x = 32,571,913,861.48
  5. Step 5: Solve for x
    x = 32,571,913,861.48/277,830.98
  6. Step 6: Final answer
    x = 117,236.44

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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.