Finding the Fourth Proportional to 239,294.21, 358,851.93 and 79,340.81
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Solution
The fourth proportional to 239,294.21, 358,851.93 and 79,340.81 is: 118,981.58
Step by Step Solution
- Step 1: Write the proportion equation
239,294.21 : 358,851.93 = 79,340.81 : x - Step 2: Convert to fraction form
239,294.21/358,851.93 = 79,340.81/x - Step 3: Cross multiply
239,294.21x = 358,851.93 × 79,340.81 - Step 4: Simplify right side
239,294.21x = 28,471,602,796.26 - Step 5: Solve for x
x = 28,471,602,796.26/239,294.21 - Step 6: Final answer
x = 118,981.58
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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.