Finding the Fourth Proportional to 287,699.10, 397,029.99 and 160,360.98
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Solution
The fourth proportional to 287,699.10, 397,029.99 and 160,360.98 is: 221,301.07
Step by Step Solution
- Step 1: Write the proportion equation
287,699.10 : 397,029.99 = 160,360.98 : x - Step 2: Convert to fraction form
287,699.10/397,029.99 = 160,360.98/x - Step 3: Cross multiply
287,699.10x = 397,029.99 × 160,360.98 - Step 4: Simplify right side
287,699.10x = 63,668,118,285.79 - Step 5: Solve for x
x = 63,668,118,285.79/287,699.10 - Step 6: Final answer
x = 221,301.07
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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.