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Finding the Fourth Proportional to 371,072.34, 512,080.78 and 201,306.44

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Solution

The fourth proportional to 371,072.34, 512,080.78 and 201,306.44 is: 277,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,072.34 : 512,080.78 = 201,306.44 : x
  2. Step 2: Convert to fraction form
    371,072.34/512,080.78 = 201,306.44/x
  3. Step 3: Cross multiply
    371,072.34x = 512,080.78 × 201,306.44
  4. Step 4: Simplify right side
    371,072.34x = 103,085,158,814.22
  5. Step 5: Solve for x
    x = 103,085,158,814.22/371,072.34
  6. Step 6: Final answer
    x = 277,803.40

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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.