Home / 403,879.45-557,331.98-222,555.28

Finding the Fourth Proportional to 403,879.45, 557,331.98 and 222,555.28

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Solution

The fourth proportional to 403,879.45, 557,331.98 and 222,555.28 is: 307,114.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,879.45 : 557,331.98 = 222,555.28 : x
  2. Step 2: Convert to fraction form
    403,879.45/557,331.98 = 222,555.28/x
  3. Step 3: Cross multiply
    403,879.45x = 557,331.98 × 222,555.28
  4. Step 4: Simplify right side
    403,879.45x = 124,037,174,861.85
  5. Step 5: Solve for x
    x = 124,037,174,861.85/403,879.45
  6. Step 6: Final answer
    x = 307,114.35

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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.