Home / 403,905.03-557,381.52-220,145.19

Finding the Fourth Proportional to 403,905.03, 557,381.52 and 220,145.19

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Solution

The fourth proportional to 403,905.03, 557,381.52 and 220,145.19 is: 303,796.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,905.03 : 557,381.52 = 220,145.19 : x
  2. Step 2: Convert to fraction form
    403,905.03/557,381.52 = 220,145.19/x
  3. Step 3: Cross multiply
    403,905.03x = 557,381.52 × 220,145.19
  4. Step 4: Simplify right side
    403,905.03x = 122,704,860,622.89
  5. Step 5: Solve for x
    x = 122,704,860,622.89/403,905.03
  6. Step 6: Final answer
    x = 303,796.32

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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.