Home / 371,147.18-512,189.06-201,381.30

Finding the Fourth Proportional to 371,147.18, 512,189.06 and 201,381.30

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Solution

The fourth proportional to 371,147.18, 512,189.06 and 201,381.30 is: 277,909.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,147.18 : 512,189.06 = 201,381.30 : x
  2. Step 2: Convert to fraction form
    371,147.18/512,189.06 = 201,381.30/x
  3. Step 3: Cross multiply
    371,147.18x = 512,189.06 × 201,381.30
  4. Step 4: Simplify right side
    371,147.18x = 103,145,297,741.67
  5. Step 5: Solve for x
    x = 103,145,297,741.67/371,147.18
  6. Step 6: Final answer
    x = 277,909.42

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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.