Finding the Fourth Proportional to 366,415.60, 549,623.40 and 330,257.20
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Solution
The fourth proportional to 366,415.60, 549,623.40 and 330,257.20 is: 495,385.80
Step by Step Solution
- Step 1: Write the proportion equation
366,415.60 : 549,623.40 = 330,257.20 : x - Step 2: Convert to fraction form
366,415.60/549,623.40 = 330,257.20/x - Step 3: Cross multiply
366,415.60x = 549,623.40 × 330,257.20 - Step 4: Simplify right side
366,415.60x = 181,517,085,138.48 - Step 5: Solve for x
x = 181,517,085,138.48/366,415.60 - Step 6: Final answer
x = 495,385.80
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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.