Finding the Fourth Proportional to 157,269.24, 234,763.62 and 145,561.95
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Solution
The fourth proportional to 157,269.24, 234,763.62 and 145,561.95 is: 217,287.57
Step by Step Solution
- Step 1: Write the proportion equation
157,269.24 : 234,763.62 = 145,561.95 : x - Step 2: Convert to fraction form
157,269.24/234,763.62 = 145,561.95/x - Step 3: Cross multiply
157,269.24x = 234,763.62 × 145,561.95 - Step 4: Simplify right side
157,269.24x = 34,172,650,316.26 - Step 5: Solve for x
x = 34,172,650,316.26/157,269.24 - Step 6: Final answer
x = 217,287.57
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.