Finding the Fourth Proportional to 388,727.01, 536,486.82 and 216,660.68
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Solution
The fourth proportional to 388,727.01, 536,486.82 and 216,660.68 is: 299,016.01
Step by Step Solution
- Step 1: Write the proportion equation
388,727.01 : 536,486.82 = 216,660.68 : x - Step 2: Convert to fraction form
388,727.01/536,486.82 = 216,660.68/x - Step 3: Cross multiply
388,727.01x = 536,486.82 × 216,660.68 - Step 4: Simplify right side
388,727.01x = 116,235,599,232.24 - Step 5: Solve for x
x = 116,235,599,232.24/388,727.01 - Step 6: Final answer
x = 299,016.01
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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.