Finding the Fourth Proportional to 236,679.68, 326,631.28 and 129,259.76
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Solution
The fourth proportional to 236,679.68, 326,631.28 and 129,259.76 is: 178,385.74
Step by Step Solution
- Step 1: Write the proportion equation
236,679.68 : 326,631.28 = 129,259.76 : x - Step 2: Convert to fraction form
236,679.68/326,631.28 = 129,259.76/x - Step 3: Cross multiply
236,679.68x = 326,631.28 × 129,259.76 - Step 4: Simplify right side
236,679.68x = 42,220,280,861.29 - Step 5: Solve for x
x = 42,220,280,861.29/236,679.68 - Step 6: Final answer
x = 178,385.74
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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.