Finding the Fourth Proportional to 235,417.80, 353,126.70 and 218,137.80
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Solution
The fourth proportional to 235,417.80, 353,126.70 and 218,137.80 is: 327,206.70
Step by Step Solution
- Step 1: Write the proportion equation
235,417.80 : 353,126.70 = 218,137.80 : x - Step 2: Convert to fraction form
235,417.80/353,126.70 = 218,137.80/x - Step 3: Cross multiply
235,417.80x = 353,126.70 × 218,137.80 - Step 4: Simplify right side
235,417.80x = 77,030,281,459.26 - Step 5: Solve for x
x = 77,030,281,459.26/235,417.80 - Step 6: Final answer
x = 327,206.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.