Finding the Fourth Proportional to 351,146.78, 526,403.99 and 126,349.13
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Solution
The fourth proportional to 351,146.78, 526,403.99 and 126,349.13 is: 189,409.92
Step by Step Solution
- Step 1: Write the proportion equation
351,146.78 : 526,403.99 = 126,349.13 : x - Step 2: Convert to fraction form
351,146.78/526,403.99 = 126,349.13/x - Step 3: Cross multiply
351,146.78x = 526,403.99 × 126,349.13 - Step 4: Simplify right side
351,146.78x = 66,510,683,848.88 - Step 5: Solve for x
x = 66,510,683,848.88/351,146.78 - Step 6: Final answer
x = 189,409.92
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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.