Finding the Fourth Proportional to 389,186.64, 537,056.70 and 219,409.82
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Solution
The fourth proportional to 389,186.64, 537,056.70 and 219,409.82 is: 302,773.79
Step by Step Solution
- Step 1: Write the proportion equation
389,186.64 : 537,056.70 = 219,409.82 : x - Step 2: Convert to fraction form
389,186.64/537,056.70 = 219,409.82/x - Step 3: Cross multiply
389,186.64x = 537,056.70 × 219,409.82 - Step 4: Simplify right side
389,186.64x = 117,835,513,876.79 - Step 5: Solve for x
x = 117,835,513,876.79/389,186.64 - Step 6: Final answer
x = 302,773.79
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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.