Finding the Fourth Proportional to 239,399.08, 358,039.86 and 212,930.91
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Solution
The fourth proportional to 239,399.08, 358,039.86 and 212,930.91 is: 318,454.66
Step by Step Solution
- Step 1: Write the proportion equation
239,399.08 : 358,039.86 = 212,930.91 : x - Step 2: Convert to fraction form
239,399.08/358,039.86 = 212,930.91/x - Step 3: Cross multiply
239,399.08x = 358,039.86 × 212,930.91 - Step 4: Simplify right side
239,399.08x = 76,237,753,206.07 - Step 5: Solve for x
x = 76,237,753,206.07/239,399.08 - Step 6: Final answer
x = 318,454.66
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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.