Finding the Fourth Proportional to 351,990.36, 528,036.57 and 141,615.54
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Solution
The fourth proportional to 351,990.36, 528,036.57 and 141,615.54 is: 212,443.84
Step by Step Solution
- Step 1: Write the proportion equation
351,990.36 : 528,036.57 = 141,615.54 : x - Step 2: Convert to fraction form
351,990.36/528,036.57 = 141,615.54/x - Step 3: Cross multiply
351,990.36x = 528,036.57 × 141,615.54 - Step 4: Simplify right side
351,990.36x = 74,778,184,000.30 - Step 5: Solve for x
x = 74,778,184,000.30/351,990.36 - Step 6: Final answer
x = 212,443.84
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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.