Finding the Fourth Proportional to 330,130.08, 455,858.64 and 209,485.44
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Solution
The fourth proportional to 330,130.08, 455,858.64 and 209,485.44 is: 289,267.03
Step by Step Solution
- Step 1: Write the proportion equation
330,130.08 : 455,858.64 = 209,485.44 : x - Step 2: Convert to fraction form
330,130.08/455,858.64 = 209,485.44/x - Step 3: Cross multiply
330,130.08x = 455,858.64 × 209,485.44 - Step 4: Simplify right side
330,130.08x = 95,495,747,778.20 - Step 5: Solve for x
x = 95,495,747,778.20/330,130.08 - Step 6: Final answer
x = 289,267.03
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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.