Home / 403,885.40-557,339.02-222,596.78

Finding the Fourth Proportional to 403,885.40, 557,339.02 and 222,596.78

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Solution

The fourth proportional to 403,885.40, 557,339.02 and 222,596.78 is: 307,170.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,885.40 : 557,339.02 = 222,596.78 : x
  2. Step 2: Convert to fraction form
    403,885.40/557,339.02 = 222,596.78/x
  3. Step 3: Cross multiply
    403,885.40x = 557,339.02 × 222,596.78
  4. Step 4: Simplify right side
    403,885.40x = 124,061,871,220.36
  5. Step 5: Solve for x
    x = 124,061,871,220.36/403,885.40
  6. Step 6: Final answer
    x = 307,170.97

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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.