Home / 403,918.96-557,405.67-220,157.32

Finding the Fourth Proportional to 403,918.96, 557,405.67 and 220,157.32

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Solution

The fourth proportional to 403,918.96, 557,405.67 and 220,157.32 is: 303,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,918.96 : 557,405.67 = 220,157.32 : x
  2. Step 2: Convert to fraction form
    403,918.96/557,405.67 = 220,157.32/x
  3. Step 3: Cross multiply
    403,918.96x = 557,405.67 × 220,157.32
  4. Step 4: Simplify right side
    403,918.96x = 122,716,938,460.00
  5. Step 5: Solve for x
    x = 122,716,938,460.00/403,918.96
  6. Step 6: Final answer
    x = 303,815.74

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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.