Finding the Fourth Proportional to 403,427.08, 605,143.86 and 137,248.12
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Solution
The fourth proportional to 403,427.08, 605,143.86 and 137,248.12 is: 205,873.28
Step by Step Solution
- Step 1: Write the proportion equation
403,427.08 : 605,143.86 = 137,248.12 : x - Step 2: Convert to fraction form
403,427.08/605,143.86 = 137,248.12/x - Step 3: Cross multiply
403,427.08x = 605,143.86 × 137,248.12 - Step 4: Simplify right side
403,427.08x = 83,054,857,114.54 - Step 5: Solve for x
x = 83,054,857,114.54/403,427.08 - Step 6: Final answer
x = 205,873.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.