Finding the Fourth Proportional to 386,307.24, 579,543.95 and 130,165.30
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Solution
The fourth proportional to 386,307.24, 579,543.95 and 130,165.30 is: 195,275.95
Step by Step Solution
- Step 1: Write the proportion equation
386,307.24 : 579,543.95 = 130,165.30 : x - Step 2: Convert to fraction form
386,307.24/579,543.95 = 130,165.30/x - Step 3: Cross multiply
386,307.24x = 579,543.95 × 130,165.30 - Step 4: Simplify right side
386,307.24x = 75,436,512,114.94 - Step 5: Solve for x
x = 75,436,512,114.94/386,307.24 - Step 6: Final answer
x = 195,275.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.