Finding the Fourth Proportional to 390,157.08, 585,193.08 and 264,603.84
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Solution
The fourth proportional to 390,157.08, 585,193.08 and 264,603.84 is: 396,876.91
Step by Step Solution
- Step 1: Write the proportion equation
390,157.08 : 585,193.08 = 264,603.84 : x - Step 2: Convert to fraction form
390,157.08/585,193.08 = 264,603.84/x - Step 3: Cross multiply
390,157.08x = 585,193.08 × 264,603.84 - Step 4: Simplify right side
390,157.08x = 154,844,336,109.43 - Step 5: Solve for x
x = 154,844,336,109.43/390,157.08 - Step 6: Final answer
x = 396,876.91
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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.