Finding the Fourth Proportional to 389,823.75, 537,957.08 and 210,975.75
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Solution
The fourth proportional to 389,823.75, 537,957.08 and 210,975.75 is: 291,146.70
Step by Step Solution
- Step 1: Write the proportion equation
389,823.75 : 537,957.08 = 210,975.75 : x - Step 2: Convert to fraction form
389,823.75/537,957.08 = 210,975.75/x - Step 3: Cross multiply
389,823.75x = 537,957.08 × 210,975.75 - Step 4: Simplify right side
389,823.75x = 113,495,897,365.93 - Step 5: Solve for x
x = 113,495,897,365.93/389,823.75 - Step 6: Final answer
x = 291,146.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.