Finding the Fourth Proportional to 304,431.32, 420,108.93 and 168,465.17
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Solution
The fourth proportional to 304,431.32, 420,108.93 and 168,465.17 is: 232,478.45
Step by Step Solution
- Step 1: Write the proportion equation
304,431.32 : 420,108.93 = 168,465.17 : x - Step 2: Convert to fraction form
304,431.32/420,108.93 = 168,465.17/x - Step 3: Cross multiply
304,431.32x = 420,108.93 × 168,465.17 - Step 4: Simplify right side
304,431.32x = 70,773,723,361.24 - Step 5: Solve for x
x = 70,773,723,361.24/304,431.32 - Step 6: Final answer
x = 232,478.45
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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.