Finding the Fourth Proportional to 388,764.93, 536,500.97 and 216,678.09
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Solution
The fourth proportional to 388,764.93, 536,500.97 and 216,678.09 is: 299,018.76
Step by Step Solution
- Step 1: Write the proportion equation
388,764.93 : 536,500.97 = 216,678.09 : x - Step 2: Convert to fraction form
388,764.93/536,500.97 = 216,678.09/x - Step 3: Cross multiply
388,764.93x = 536,500.97 × 216,678.09 - Step 4: Simplify right side
388,764.93x = 116,248,005,462.75 - Step 5: Solve for x
x = 116,248,005,462.75/388,764.93 - Step 6: Final answer
x = 299,018.76
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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.