Home / 403,931.54-557,400.18-222,633.50

Finding the Fourth Proportional to 403,931.54, 557,400.18 and 222,633.50

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Solution

The fourth proportional to 403,931.54, 557,400.18 and 222,633.50 is: 307,220.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,931.54 : 557,400.18 = 222,633.50 : x
  2. Step 2: Convert to fraction form
    403,931.54/557,400.18 = 222,633.50/x
  3. Step 3: Cross multiply
    403,931.54x = 557,400.18 × 222,633.50
  4. Step 4: Simplify right side
    403,931.54x = 124,095,951,021.91
  5. Step 5: Solve for x
    x = 124,095,951,021.91/403,931.54
  6. Step 6: Final answer
    x = 307,220.25

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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.