Home / 425,414.10-637,967.55-214,982.10

Finding the Fourth Proportional to 425,414.10, 637,967.55 and 214,982.10

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Solution

The fourth proportional to 425,414.10, 637,967.55 and 214,982.10 is: 322,395.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,414.10 : 637,967.55 = 214,982.10 : x
  2. Step 2: Convert to fraction form
    425,414.10/637,967.55 = 214,982.10/x
  3. Step 3: Cross multiply
    425,414.10x = 637,967.55 × 214,982.10
  4. Step 4: Simplify right side
    425,414.10x = 137,151,603,630.86
  5. Step 5: Solve for x
    x = 137,151,603,630.86/425,414.10
  6. Step 6: Final answer
    x = 322,395.53

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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.