Finding the Fourth Proportional to 257,265.21, 385,691.73 and 122,261.52
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Solution
The fourth proportional to 257,265.21, 385,691.73 and 122,261.52 is: 183,294.34
Step by Step Solution
- Step 1: Write the proportion equation
257,265.21 : 385,691.73 = 122,261.52 : x - Step 2: Convert to fraction form
257,265.21/385,691.73 = 122,261.52/x - Step 3: Cross multiply
257,265.21x = 385,691.73 × 122,261.52 - Step 4: Simplify right side
257,265.21x = 47,155,257,161.23 - Step 5: Solve for x
x = 47,155,257,161.23/257,265.21 - Step 6: Final answer
x = 183,294.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.