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Finding the Fourth Proportional to 371,291.55, 512,383.32 and 201,525.67

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Solution

The fourth proportional to 371,291.55, 512,383.32 and 201,525.67 is: 278,105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,291.55 : 512,383.32 = 201,525.67 : x
  2. Step 2: Convert to fraction form
    371,291.55/512,383.32 = 201,525.67/x
  3. Step 3: Cross multiply
    371,291.55x = 512,383.32 × 201,525.67
  4. Step 4: Simplify right side
    371,291.55x = 103,258,391,859.82
  5. Step 5: Solve for x
    x = 103,258,391,859.82/371,291.55
  6. Step 6: Final answer
    x = 278,105.96

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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.