Finding the Fourth Proportional to 284,312.41, 392,340.84 and 156,985.27
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Solution
The fourth proportional to 284,312.41, 392,340.84 and 156,985.27 is: 216,633.99
Step by Step Solution
- Step 1: Write the proportion equation
284,312.41 : 392,340.84 = 156,985.27 : x - Step 2: Convert to fraction form
284,312.41/392,340.84 = 156,985.27/x - Step 3: Cross multiply
284,312.41x = 392,340.84 × 156,985.27 - Step 4: Simplify right side
284,312.41x = 61,591,732,699.43 - Step 5: Solve for x
x = 61,591,732,699.43/284,312.41 - Step 6: Final answer
x = 216,633.99
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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.