Finding the Fourth Proportional to 236,659.18, 326,602.95 and 129,239.20
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Solution
The fourth proportional to 236,659.18, 326,602.95 and 129,239.20 is: 178,357.35
Step by Step Solution
- Step 1: Write the proportion equation
236,659.18 : 326,602.95 = 129,239.20 : x - Step 2: Convert to fraction form
236,659.18/326,602.95 = 129,239.20/x - Step 3: Cross multiply
236,659.18x = 326,602.95 × 129,239.20 - Step 4: Simplify right side
236,659.18x = 42,209,903,975.64 - Step 5: Solve for x
x = 42,209,903,975.64/236,659.18 - Step 6: Final answer
x = 178,357.35
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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.