Finding the Fourth Proportional to 236,587.80, 326,485.98 and 129,153.72
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Solution
The fourth proportional to 236,587.80, 326,485.98 and 129,153.72 is: 178,229.30
Step by Step Solution
- Step 1: Write the proportion equation
236,587.80 : 326,485.98 = 129,153.72 : x - Step 2: Convert to fraction form
236,587.80/326,485.98 = 129,153.72/x - Step 3: Cross multiply
236,587.80x = 326,485.98 × 129,153.72 - Step 4: Simplify right side
236,587.80x = 42,166,878,844.85 - Step 5: Solve for x
x = 42,166,878,844.85/236,587.80 - Step 6: Final answer
x = 178,229.30
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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.