Finding the Fourth Proportional to 311,759.95, 430,228.54 and 168,519.99
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Solution
The fourth proportional to 311,759.95, 430,228.54 and 168,519.99 is: 232,557.48
Step by Step Solution
- Step 1: Write the proportion equation
311,759.95 : 430,228.54 = 168,519.99 : x - Step 2: Convert to fraction form
311,759.95/430,228.54 = 168,519.99/x - Step 3: Cross multiply
311,759.95x = 430,228.54 × 168,519.99 - Step 4: Simplify right side
311,759.95x = 72,502,108,837.21 - Step 5: Solve for x
x = 72,502,108,837.21/311,759.95 - Step 6: Final answer
x = 232,557.48
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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.