Finding the Fourth Proportional to 257,272.62, 385,903.35 and 88,787.28
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Solution
The fourth proportional to 257,272.62, 385,903.35 and 88,787.28 is: 133,178.99
Step by Step Solution
- Step 1: Write the proportion equation
257,272.62 : 385,903.35 = 88,787.28 : x - Step 2: Convert to fraction form
257,272.62/385,903.35 = 88,787.28/x - Step 3: Cross multiply
257,272.62x = 385,903.35 × 88,787.28 - Step 4: Simplify right side
257,272.62x = 34,263,308,789.39 - Step 5: Solve for x
x = 34,263,308,789.39/257,272.62 - Step 6: Final answer
x = 133,178.99
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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.