Finding the Fourth Proportional to 395,098.34, 545,233.55 and 213,809.99
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Solution
The fourth proportional to 395,098.34, 545,233.55 and 213,809.99 is: 295,056.61
Step by Step Solution
- Step 1: Write the proportion equation
395,098.34 : 545,233.55 = 213,809.99 : x - Step 2: Convert to fraction form
395,098.34/545,233.55 = 213,809.99/x - Step 3: Cross multiply
395,098.34x = 545,233.55 × 213,809.99 - Step 4: Simplify right side
395,098.34x = 116,576,376,077.95 - Step 5: Solve for x
x = 116,576,376,077.95/395,098.34 - Step 6: Final answer
x = 295,056.61
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1.5x scale
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.