Finding the Fourth Proportional to 290,584.08, 435,064.02 and 156,985.68
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Solution
The fourth proportional to 290,584.08, 435,064.02 and 156,985.68 is: 235,039.79
Step by Step Solution
- Step 1: Write the proportion equation
290,584.08 : 435,064.02 = 156,985.68 : x - Step 2: Convert to fraction form
290,584.08/435,064.02 = 156,985.68/x - Step 3: Cross multiply
290,584.08x = 435,064.02 × 156,985.68 - Step 4: Simplify right side
290,584.08x = 68,298,821,023.23 - Step 5: Solve for x
x = 68,298,821,023.23/290,584.08 - Step 6: Final answer
x = 235,039.79
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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.