Finding the Fourth Proportional to 314,657.79, 434,226.99 and 171,419.01
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Solution
The fourth proportional to 314,657.79, 434,226.99 and 171,419.01 is: 236,557.82
Step by Step Solution
- Step 1: Write the proportion equation
314,657.79 : 434,226.99 = 171,419.01 : x - Step 2: Convert to fraction form
314,657.79/434,226.99 = 171,419.01/x - Step 3: Cross multiply
314,657.79x = 434,226.99 × 171,419.01 - Step 4: Simplify right side
314,657.79x = 74,434,760,741.08 - Step 5: Solve for x
x = 74,434,760,741.08/314,657.79 - Step 6: Final answer
x = 236,557.82
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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.