Finding the Fourth Proportional to 369,447.74, 509,838.60 and 208,302.42
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Solution
The fourth proportional to 369,447.74, 509,838.60 and 208,302.42 is: 287,457.75
Step by Step Solution
- Step 1: Write the proportion equation
369,447.74 : 509,838.60 = 208,302.42 : x - Step 2: Convert to fraction form
369,447.74/509,838.60 = 208,302.42/x - Step 3: Cross multiply
369,447.74x = 509,838.60 × 208,302.42 - Step 4: Simplify right side
369,447.74x = 106,200,614,189.41 - Step 5: Solve for x
x = 106,200,614,189.41/369,447.74 - Step 6: Final answer
x = 287,457.75
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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.