Finding the Fourth Proportional to 542,139.99, 813,104.84 and 205,206.95
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Solution
The fourth proportional to 542,139.99, 813,104.84 and 205,206.95 is: 307,770.62
Step by Step Solution
- Step 1: Write the proportion equation
542,139.99 : 813,104.84 = 205,206.95 : x - Step 2: Convert to fraction form
542,139.99/813,104.84 = 205,206.95/x - Step 3: Cross multiply
542,139.99x = 813,104.84 × 205,206.95 - Step 4: Simplify right side
542,139.99x = 166,854,759,155.08 - Step 5: Solve for x
x = 166,854,759,155.08/542,139.99 - Step 6: Final answer
x = 307,770.62
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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.