Finding the Fourth Proportional to 268,387.68, 370,457.52 and 172,894.08
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Solution
The fourth proportional to 268,387.68, 370,457.52 and 172,894.08 is: 238,646.99
Step by Step Solution
- Step 1: Write the proportion equation
268,387.68 : 370,457.52 = 172,894.08 : x - Step 2: Convert to fraction form
268,387.68/370,457.52 = 172,894.08/x - Step 3: Cross multiply
268,387.68x = 370,457.52 × 172,894.08 - Step 4: Simplify right side
268,387.68x = 64,049,912,099.48 - Step 5: Solve for x
x = 64,049,912,099.48/268,387.68 - Step 6: Final answer
x = 238,646.99
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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.