Finding the Fourth Proportional to 427,992.81, 642,114.21 and 191,280.14
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Solution
The fourth proportional to 427,992.81, 642,114.21 and 191,280.14 is: 286,976.07
Step by Step Solution
- Step 1: Write the proportion equation
427,992.81 : 642,114.21 = 191,280.14 : x - Step 2: Convert to fraction form
427,992.81/642,114.21 = 191,280.14/x - Step 3: Cross multiply
427,992.81x = 642,114.21 × 191,280.14 - Step 4: Simplify right side
427,992.81x = 122,823,692,774.22 - Step 5: Solve for x
x = 122,823,692,774.22/427,992.81 - Step 6: Final answer
x = 286,976.07
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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.