Home / 403,931.18-557,399.67-222,633.12

Finding the Fourth Proportional to 403,931.18, 557,399.67 and 222,633.12

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Solution

The fourth proportional to 403,931.18, 557,399.67 and 222,633.12 is: 307,219.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,931.18 : 557,399.67 = 222,633.12 : x
  2. Step 2: Convert to fraction form
    403,931.18/557,399.67 = 222,633.12/x
  3. Step 3: Cross multiply
    403,931.18x = 557,399.67 × 222,633.12
  4. Step 4: Simplify right side
    403,931.18x = 124,095,627,619.07
  5. Step 5: Solve for x
    x = 124,095,627,619.07/403,931.18
  6. Step 6: Final answer
    x = 307,219.73

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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.