Finding the Fourth Proportional to 348,690.36, 523,035.57 and 138,328.31
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Solution
The fourth proportional to 348,690.36, 523,035.57 and 138,328.31 is: 207,492.47
Step by Step Solution
- Step 1: Write the proportion equation
348,690.36 : 523,035.57 = 138,328.31 : x - Step 2: Convert to fraction form
348,690.36/523,035.57 = 138,328.31/x - Step 3: Cross multiply
348,690.36x = 523,035.57 × 138,328.31 - Step 4: Simplify right side
348,690.36x = 72,350,623,852.81 - Step 5: Solve for x
x = 72,350,623,852.81/348,690.36 - Step 6: Final answer
x = 207,492.47
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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.