Finding the Fourth Proportional to 318,813.01, 478,282.57 and 91,110.67
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Solution
The fourth proportional to 318,813.01, 478,282.57 and 91,110.67 is: 136,684.02
Step by Step Solution
- Step 1: Write the proportion equation
318,813.01 : 478,282.57 = 91,110.67 : x - Step 2: Convert to fraction form
318,813.01/478,282.57 = 91,110.67/x - Step 3: Cross multiply
318,813.01x = 478,282.57 × 91,110.67 - Step 4: Simplify right side
318,813.01x = 43,576,643,978.54 - Step 5: Solve for x
x = 43,576,643,978.54/318,813.01 - Step 6: Final answer
x = 136,684.02
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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.