Finding the Fourth Proportional to 369,455.08, 509,611.62 and 256,236.52
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Solution
The fourth proportional to 369,455.08, 509,611.62 and 256,236.52 is: 353,442.45
Step by Step Solution
- Step 1: Write the proportion equation
369,455.08 : 509,611.62 = 256,236.52 : x - Step 2: Convert to fraction form
369,455.08/509,611.62 = 256,236.52/x - Step 3: Cross multiply
369,455.08x = 509,611.62 × 256,236.52 - Step 4: Simplify right side
369,455.08x = 130,581,108,060.36 - Step 5: Solve for x
x = 130,581,108,060.36/369,455.08 - Step 6: Final answer
x = 353,442.45
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1.5x scale
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.