Finding the Fourth Proportional to 389,502.12, 537,602.58 and 228,409.07
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Solution
The fourth proportional to 389,502.12, 537,602.58 and 228,409.07 is: 315,257.08
Step by Step Solution
- Step 1: Write the proportion equation
389,502.12 : 537,602.58 = 228,409.07 : x - Step 2: Convert to fraction form
389,502.12/537,602.58 = 228,409.07/x - Step 3: Cross multiply
389,502.12x = 537,602.58 × 228,409.07 - Step 4: Simplify right side
389,502.12x = 122,793,302,639.39 - Step 5: Solve for x
x = 122,793,302,639.39/389,502.12 - Step 6: Final answer
x = 315,257.08
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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.