Finding the Fourth Proportional to 145,920.96, 218,849.28 and 40,711.68
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Solution
The fourth proportional to 145,920.96, 218,849.28 and 40,711.68 is: 61,058.55
Step by Step Solution
- Step 1: Write the proportion equation
145,920.96 : 218,849.28 = 40,711.68 : x - Step 2: Convert to fraction form
145,920.96/218,849.28 = 40,711.68/x - Step 3: Cross multiply
145,920.96x = 218,849.28 × 40,711.68 - Step 4: Simplify right side
145,920.96x = 8,909,721,855.59 - Step 5: Solve for x
x = 8,909,721,855.59/145,920.96 - Step 6: Final answer
x = 61,058.55
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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.