Home / 403,938.72-557,467.56-222,683.04

Finding the Fourth Proportional to 403,938.72, 557,467.56 and 222,683.04

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Solution

The fourth proportional to 403,938.72, 557,467.56 and 222,683.04 is: 307,320.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,938.72 : 557,467.56 = 222,683.04 : x
  2. Step 2: Convert to fraction form
    403,938.72/557,467.56 = 222,683.04/x
  3. Step 3: Cross multiply
    403,938.72x = 557,467.56 × 222,683.04
  4. Step 4: Simplify right side
    403,938.72x = 124,138,570,962.18
  5. Step 5: Solve for x
    x = 124,138,570,962.18/403,938.72
  6. Step 6: Final answer
    x = 307,320.31

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1.5x scale

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.