Finding the Fourth Proportional to 346,329.15, 518,312.14 and 290,232.60
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Solution
The fourth proportional to 346,329.15, 518,312.14 and 290,232.60 is: 434,358.70
Step by Step Solution
- Step 1: Write the proportion equation
346,329.15 : 518,312.14 = 290,232.60 : x - Step 2: Convert to fraction form
346,329.15/518,312.14 = 290,232.60/x - Step 3: Cross multiply
346,329.15x = 518,312.14 × 290,232.60 - Step 4: Simplify right side
346,329.15x = 150,431,078,552.60 - Step 5: Solve for x
x = 150,431,078,552.60/346,329.15 - Step 6: Final answer
x = 434,358.70
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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.