Finding the Fourth Proportional to 274,890.84, 379,340.17 and 152,378.07
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Solution
The fourth proportional to 274,890.84, 379,340.17 and 152,378.07 is: 210,276.64
Step by Step Solution
- Step 1: Write the proportion equation
274,890.84 : 379,340.17 = 152,378.07 : x - Step 2: Convert to fraction form
274,890.84/379,340.17 = 152,378.07/x - Step 3: Cross multiply
274,890.84x = 379,340.17 × 152,378.07 - Step 4: Simplify right side
274,890.84x = 57,803,122,978.07 - Step 5: Solve for x
x = 57,803,122,978.07/274,890.84 - Step 6: Final answer
x = 210,276.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.