Finding the Fourth Proportional to 290,904.76, 435,657.30 and 165,866.68
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Solution
The fourth proportional to 290,904.76, 435,657.30 and 165,866.68 is: 248,400.99
Step by Step Solution
- Step 1: Write the proportion equation
290,904.76 : 435,657.30 = 165,866.68 : x - Step 2: Convert to fraction form
290,904.76/435,657.30 = 165,866.68/x - Step 3: Cross multiply
290,904.76x = 435,657.30 × 165,866.68 - Step 4: Simplify right side
290,904.76x = 72,261,029,968.76 - Step 5: Solve for x
x = 72,261,029,968.76/290,904.76 - Step 6: Final answer
x = 248,400.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.