Finding the Fourth Proportional to 208,913.99, 288,319.14 and 118,285.92
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Solution
The fourth proportional to 208,913.99, 288,319.14 and 118,285.92 is: 163,244.67
Step by Step Solution
- Step 1: Write the proportion equation
208,913.99 : 288,319.14 = 118,285.92 : x - Step 2: Convert to fraction form
208,913.99/288,319.14 = 118,285.92/x - Step 3: Cross multiply
208,913.99x = 288,319.14 × 118,285.92 - Step 4: Simplify right side
208,913.99x = 34,104,094,728.51 - Step 5: Solve for x
x = 34,104,094,728.51/208,913.99 - Step 6: Final answer
x = 163,244.67
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1.5x scale
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.