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Finding the Fourth Proportional to 425,615.85, 637,297.44 and 256,910.67

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Solution

The fourth proportional to 425,615.85, 637,297.44 and 256,910.67 is: 384,686.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,615.85 : 637,297.44 = 256,910.67 : x
  2. Step 2: Convert to fraction form
    425,615.85/637,297.44 = 256,910.67/x
  3. Step 3: Cross multiply
    425,615.85x = 637,297.44 × 256,910.67
  4. Step 4: Simplify right side
    425,615.85x = 163,728,512,299.69
  5. Step 5: Solve for x
    x = 163,728,512,299.69/425,615.85
  6. Step 6: Final answer
    x = 384,686.13

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1.5x scale

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.