Finding the Fourth Proportional to 352,766.08, 486,894.18 and 216,916.90
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Solution
The fourth proportional to 352,766.08, 486,894.18 and 216,916.90 is: 299,392.66
Step by Step Solution
- Step 1: Write the proportion equation
352,766.08 : 486,894.18 = 216,916.90 : x - Step 2: Convert to fraction form
352,766.08/486,894.18 = 216,916.90/x - Step 3: Cross multiply
352,766.08x = 486,894.18 × 216,916.90 - Step 4: Simplify right side
352,766.08x = 105,615,576,153.64 - Step 5: Solve for x
x = 105,615,576,153.64/352,766.08 - Step 6: Final answer
x = 299,392.66
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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.