Finding the Fourth Proportional to 346,478.67, 519,718.08 and 130,378.09
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Solution
The fourth proportional to 346,478.67, 519,718.08 and 130,378.09 is: 195,567.16
Step by Step Solution
- Step 1: Write the proportion equation
346,478.67 : 519,718.08 = 130,378.09 : x - Step 2: Convert to fraction form
346,478.67/519,718.08 = 130,378.09/x - Step 3: Cross multiply
346,478.67x = 519,718.08 × 130,378.09 - Step 4: Simplify right side
346,478.67x = 67,759,850,608.87 - Step 5: Solve for x
x = 67,759,850,608.87/346,478.67 - Step 6: Final answer
x = 195,567.16
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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.