Finding the Fourth Proportional to 284,184.42, 392,174.54 and 156,860.05
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Solution
The fourth proportional to 284,184.42, 392,174.54 and 156,860.05 is: 216,466.89
Step by Step Solution
- Step 1: Write the proportion equation
284,184.42 : 392,174.54 = 156,860.05 : x - Step 2: Convert to fraction form
284,184.42/392,174.54 = 156,860.05/x - Step 3: Cross multiply
284,184.42x = 392,174.54 × 156,860.05 - Step 4: Simplify right side
284,184.42x = 61,516,517,953.13 - Step 5: Solve for x
x = 61,516,517,953.13/284,184.42 - Step 6: Final answer
x = 216,466.89
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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.