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Finding the Fourth Proportional to 277,918.43, 416,670.28 and 130,139.87

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Solution

The fourth proportional to 277,918.43, 416,670.28 and 130,139.87 is: 195,112.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,918.43 : 416,670.28 = 130,139.87 : x
  2. Step 2: Convert to fraction form
    277,918.43/416,670.28 = 130,139.87/x
  3. Step 3: Cross multiply
    277,918.43x = 416,670.28 × 130,139.87
  4. Step 4: Simplify right side
    277,918.43x = 54,225,416,072.06
  5. Step 5: Solve for x
    x = 54,225,416,072.06/277,918.43
  6. Step 6: Final answer
    x = 195,112.70

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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.