Finding the Fourth Proportional to 246,643.70, 369,965.55 and 128,545.70
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Solution
The fourth proportional to 246,643.70, 369,965.55 and 128,545.70 is: 192,818.55
Step by Step Solution
- Step 1: Write the proportion equation
246,643.70 : 369,965.55 = 128,545.70 : x - Step 2: Convert to fraction form
246,643.70/369,965.55 = 128,545.70/x - Step 3: Cross multiply
246,643.70x = 369,965.55 × 128,545.70 - Step 4: Simplify right side
246,643.70x = 47,557,480,600.64 - Step 5: Solve for x
x = 47,557,480,600.64/246,643.70 - Step 6: Final answer
x = 192,818.55
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1.5x scale
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.