Home / 277,981.17-416,997.72-78,301.23

Finding the Fourth Proportional to 277,981.17, 416,997.72 and 78,301.23

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Solution

The fourth proportional to 277,981.17, 416,997.72 and 78,301.23 is: 117,459.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,981.17 : 416,997.72 = 78,301.23 : x
  2. Step 2: Convert to fraction form
    277,981.17/416,997.72 = 78,301.23/x
  3. Step 3: Cross multiply
    277,981.17x = 416,997.72 × 78,301.23
  4. Step 4: Simplify right side
    277,981.17x = 32,651,435,165.07
  5. Step 5: Solve for x
    x = 32,651,435,165.07/277,981.17
  6. Step 6: Final answer
    x = 117,459.16

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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.