Finding the Fourth Proportional to 208,069.84, 312,163.08 and 83,498.32
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Solution
The fourth proportional to 208,069.84, 312,163.08 and 83,498.32 is: 125,270.88
Step by Step Solution
- Step 1: Write the proportion equation
208,069.84 : 312,163.08 = 83,498.32 : x - Step 2: Convert to fraction form
208,069.84/312,163.08 = 83,498.32/x - Step 3: Cross multiply
208,069.84x = 312,163.08 × 83,498.32 - Step 4: Simplify right side
208,069.84x = 26,065,092,746.03 - Step 5: Solve for x
x = 26,065,092,746.03/208,069.84 - Step 6: Final answer
x = 125,270.88
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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.