Home / 403,915.10-557,434.89-222,659.28

Finding the Fourth Proportional to 403,915.10, 557,434.89 and 222,659.28

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Solution

The fourth proportional to 403,915.10, 557,434.89 and 222,659.28 is: 307,287.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,915.10 : 557,434.89 = 222,659.28 : x
  2. Step 2: Convert to fraction form
    403,915.10/557,434.89 = 222,659.28/x
  3. Step 3: Cross multiply
    403,915.10x = 557,434.89 × 222,659.28
  4. Step 4: Simplify right side
    403,915.10x = 124,118,051,254.28
  5. Step 5: Solve for x
    x = 124,118,051,254.28/403,915.10
  6. Step 6: Final answer
    x = 307,287.48

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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.