Finding the Fourth Proportional to 236,657.18, 326,600.19 and 129,237.20
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Solution
The fourth proportional to 236,657.18, 326,600.19 and 129,237.20 is: 178,354.59
Step by Step Solution
- Step 1: Write the proportion equation
236,657.18 : 326,600.19 = 129,237.20 : x - Step 2: Convert to fraction form
236,657.18/326,600.19 = 129,237.20/x - Step 3: Cross multiply
236,657.18x = 326,600.19 × 129,237.20 - Step 4: Simplify right side
236,657.18x = 42,208,894,075.07 - Step 5: Solve for x
x = 42,208,894,075.07/236,657.18 - Step 6: Final answer
x = 178,354.59
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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.