Home / 425,215.46-637,837.77-225,265.34

Finding the Fourth Proportional to 425,215.46, 637,837.77 and 225,265.34

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Solution

The fourth proportional to 425,215.46, 637,837.77 and 225,265.34 is: 337,905.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,215.46 : 637,837.77 = 225,265.34 : x
  2. Step 2: Convert to fraction form
    425,215.46/637,837.77 = 225,265.34/x
  3. Step 3: Cross multiply
    425,215.46x = 637,837.77 × 225,265.34
  4. Step 4: Simplify right side
    425,215.46x = 143,682,742,123.89
  5. Step 5: Solve for x
    x = 143,682,742,123.89/425,215.46
  6. Step 6: Final answer
    x = 337,905.73

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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.