Finding the Fourth Proportional to 389,368.70, 537,327.84 and 217,284.88
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Solution
The fourth proportional to 389,368.70, 537,327.84 and 217,284.88 is: 299,852.60
Step by Step Solution
- Step 1: Write the proportion equation
389,368.70 : 537,327.84 = 217,284.88 : x - Step 2: Convert to fraction form
389,368.70/537,327.84 = 217,284.88/x - Step 3: Cross multiply
389,368.70x = 537,327.84 × 217,284.88 - Step 4: Simplify right side
389,368.70x = 116,753,215,235.06 - Step 5: Solve for x
x = 116,753,215,235.06/389,368.70 - Step 6: Final answer
x = 299,852.60
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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.