Finding the Fourth Proportional to 128,302.03, 192,430.36 and 34,815.07
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Solution
The fourth proportional to 128,302.03, 192,430.36 and 34,815.07 is: 52,216.45
Step by Step Solution
- Step 1: Write the proportion equation
128,302.03 : 192,430.36 = 34,815.07 : x - Step 2: Convert to fraction form
128,302.03/192,430.36 = 34,815.07/x - Step 3: Cross multiply
128,302.03x = 192,430.36 × 34,815.07 - Step 4: Simplify right side
128,302.03x = 6,699,476,453.53 - Step 5: Solve for x
x = 6,699,476,453.53/128,302.03 - Step 6: Final answer
x = 52,216.45
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1.5x scale
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.