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Finding the Fourth Proportional to 371,186.16, 512,238.27 and 201,420.30

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Solution

The fourth proportional to 371,186.16, 512,238.27 and 201,420.30 is: 277,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,186.16 : 512,238.27 = 201,420.30 : x
  2. Step 2: Convert to fraction form
    371,186.16/512,238.27 = 201,420.30/x
  3. Step 3: Cross multiply
    371,186.16x = 512,238.27 × 201,420.30
  4. Step 4: Simplify right side
    371,186.16x = 103,175,186,014.88
  5. Step 5: Solve for x
    x = 103,175,186,014.88/371,186.16
  6. Step 6: Final answer
    x = 277,960.76

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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.