Finding the Fourth Proportional to 393,050.12, 542,354.47 and 220,943.75
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Solution
The fourth proportional to 393,050.12, 542,354.47 and 220,943.75 is: 304,871.62
Step by Step Solution
- Step 1: Write the proportion equation
393,050.12 : 542,354.47 = 220,943.75 : x - Step 2: Convert to fraction form
393,050.12/542,354.47 = 220,943.75/x - Step 3: Cross multiply
393,050.12x = 542,354.47 × 220,943.75 - Step 4: Simplify right side
393,050.12x = 119,829,827,166.93 - Step 5: Solve for x
x = 119,829,827,166.93/393,050.12 - Step 6: Final answer
x = 304,871.62
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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.