Finding the Fourth Proportional to 258,979.95, 388,492.74 and 79,106.02
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Solution
The fourth proportional to 258,979.95, 388,492.74 and 79,106.02 is: 118,666.00
Step by Step Solution
- Step 1: Write the proportion equation
258,979.95 : 388,492.74 = 79,106.02 : x - Step 2: Convert to fraction form
258,979.95/388,492.74 = 79,106.02/x - Step 3: Cross multiply
258,979.95x = 388,492.74 × 79,106.02 - Step 4: Simplify right side
258,979.95x = 30,732,113,489.06 - Step 5: Solve for x
x = 30,732,113,489.06/258,979.95 - Step 6: Final answer
x = 118,666.00
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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.