Finding the Fourth Proportional to 352,440.36, 528,655.98 and 86,203.08
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Solution
The fourth proportional to 352,440.36, 528,655.98 and 86,203.08 is: 129,303.50
Step by Step Solution
- Step 1: Write the proportion equation
352,440.36 : 528,655.98 = 86,203.08 : x - Step 2: Convert to fraction form
352,440.36/528,655.98 = 86,203.08/x - Step 3: Cross multiply
352,440.36x = 528,655.98 × 86,203.08 - Step 4: Simplify right side
352,440.36x = 45,571,773,736.42 - Step 5: Solve for x
x = 45,571,773,736.42/352,440.36 - Step 6: Final answer
x = 129,303.50
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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.