Finding the Fourth Proportional to 278,545.50, 384,393.18 and 151,221.09
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Solution
The fourth proportional to 278,545.50, 384,393.18 and 151,221.09 is: 208,685.32
Step by Step Solution
- Step 1: Write the proportion equation
278,545.50 : 384,393.18 = 151,221.09 : x - Step 2: Convert to fraction form
278,545.50/384,393.18 = 151,221.09/x - Step 3: Cross multiply
278,545.50x = 384,393.18 × 151,221.09 - Step 4: Simplify right side
278,545.50x = 58,128,355,668.17 - Step 5: Solve for x
x = 58,128,355,668.17/278,545.50 - Step 6: Final answer
x = 208,685.32
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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.