Finding the Fourth Proportional to 342,378.81, 513,747.33 and 140,125.05
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Solution
The fourth proportional to 342,378.81, 513,747.33 and 140,125.05 is: 210,260.88
Step by Step Solution
- Step 1: Write the proportion equation
342,378.81 : 513,747.33 = 140,125.05 : x - Step 2: Convert to fraction form
342,378.81/513,747.33 = 140,125.05/x - Step 3: Cross multiply
342,378.81x = 513,747.33 × 140,125.05 - Step 4: Simplify right side
342,378.81x = 71,988,870,303.62 - Step 5: Solve for x
x = 71,988,870,303.62/342,378.81 - Step 6: Final answer
x = 210,260.88
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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.