Finding the Fourth Proportional to 287,811.29, 431,717.99 and 88,130.87
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Solution
The fourth proportional to 287,811.29, 431,717.99 and 88,130.87 is: 132,196.62
Step by Step Solution
- Step 1: Write the proportion equation
287,811.29 : 431,717.99 = 88,130.87 : x - Step 2: Convert to fraction form
287,811.29/431,717.99 = 88,130.87/x - Step 3: Cross multiply
287,811.29x = 431,717.99 × 88,130.87 - Step 4: Simplify right side
287,811.29x = 38,047,681,073.05 - Step 5: Solve for x
x = 38,047,681,073.05/287,811.29 - Step 6: Final answer
x = 132,196.62
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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.