Finding the Fourth Proportional to 389,979.48, 584,852.99 and 165,336.31
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Solution
The fourth proportional to 389,979.48, 584,852.99 and 165,336.31 is: 247,955.18
Step by Step Solution
- Step 1: Write the proportion equation
389,979.48 : 584,852.99 = 165,336.31 : x - Step 2: Convert to fraction form
389,979.48/584,852.99 = 165,336.31/x - Step 3: Cross multiply
389,979.48x = 584,852.99 × 165,336.31 - Step 4: Simplify right side
389,979.48x = 96,697,432,970.25 - Step 5: Solve for x
x = 96,697,432,970.25/389,979.48 - Step 6: Final answer
x = 247,955.18
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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.