Home / 403,840.17-557,303.10-222,558.57

Finding the Fourth Proportional to 403,840.17, 557,303.10 and 222,558.57

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Solution

The fourth proportional to 403,840.17, 557,303.10 and 222,558.57 is: 307,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,840.17 : 557,303.10 = 222,558.57 : x
  2. Step 2: Convert to fraction form
    403,840.17/557,303.10 = 222,558.57/x
  3. Step 3: Cross multiply
    403,840.17x = 557,303.10 × 222,558.57
  4. Step 4: Simplify right side
    403,840.17x = 124,032,580,992.57
  5. Step 5: Solve for x
    x = 124,032,580,992.57/403,840.17
  6. Step 6: Final answer
    x = 307,132.85

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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.