Home / 404,925.08-558,787.61-221,157.54

Finding the Fourth Proportional to 404,925.08, 558,787.61 and 221,157.54

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Solution

The fourth proportional to 404,925.08, 558,787.61 and 221,157.54 is: 305,192.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,925.08 : 558,787.61 = 221,157.54 : x
  2. Step 2: Convert to fraction form
    404,925.08/558,787.61 = 221,157.54/x
  3. Step 3: Cross multiply
    404,925.08x = 558,787.61 × 221,157.54
  4. Step 4: Simplify right side
    404,925.08x = 123,580,093,762.97
  5. Step 5: Solve for x
    x = 123,580,093,762.97/404,925.08
  6. Step 6: Final answer
    x = 305,192.49

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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.