Finding the Fourth Proportional to 403,925.12, 557,420.50 and 222,644.08
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Solution
The fourth proportional to 403,925.12, 557,420.50 and 222,644.08 is: 307,250.94
Step by Step Solution
- Step 1: Write the proportion equation
403,925.12 : 557,420.50 = 222,644.08 : x - Step 2: Convert to fraction form
403,925.12/557,420.50 = 222,644.08/x - Step 3: Cross multiply
403,925.12x = 557,420.50 × 222,644.08 - Step 4: Simplify right side
403,925.12x = 124,106,374,395.64 - Step 5: Solve for x
x = 124,106,374,395.64/403,925.12 - Step 6: Final answer
x = 307,250.94
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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.