Finding the Fourth Proportional to 389,269.81, 537,207.96 and 217,202.81
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Solution
The fourth proportional to 389,269.81, 537,207.96 and 217,202.81 is: 299,748.59
Step by Step Solution
- Step 1: Write the proportion equation
389,269.81 : 537,207.96 = 217,202.81 : x - Step 2: Convert to fraction form
389,269.81/537,207.96 = 217,202.81/x - Step 3: Cross multiply
389,269.81x = 537,207.96 × 217,202.81 - Step 4: Simplify right side
389,269.81x = 116,683,076,594.84 - Step 5: Solve for x
x = 116,683,076,594.84/389,269.81 - Step 6: Final answer
x = 299,748.59
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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.