Finding the Fourth Proportional to 287,547.07, 396,827.09 and 160,222.63
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Solution
The fourth proportional to 287,547.07, 396,827.09 and 160,222.63 is: 221,113.99
Step by Step Solution
- Step 1: Write the proportion equation
287,547.07 : 396,827.09 = 160,222.63 : x - Step 2: Convert to fraction form
287,547.07/396,827.09 = 160,222.63/x - Step 3: Cross multiply
287,547.07x = 396,827.09 × 160,222.63 - Step 4: Simplify right side
287,547.07x = 63,580,678,431.47 - Step 5: Solve for x
x = 63,580,678,431.47/287,547.07 - Step 6: Final answer
x = 221,113.99
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1.5x scale
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.