Finding the Fourth Proportional to 361,873.70, 542,810.55 and 328,631.30
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Solution
The fourth proportional to 361,873.70, 542,810.55 and 328,631.30 is: 492,946.95
Step by Step Solution
- Step 1: Write the proportion equation
361,873.70 : 542,810.55 = 328,631.30 : x - Step 2: Convert to fraction form
361,873.70/542,810.55 = 328,631.30/x - Step 3: Cross multiply
361,873.70x = 542,810.55 × 328,631.30 - Step 4: Simplify right side
361,873.70x = 178,384,536,700.22 - Step 5: Solve for x
x = 178,384,536,700.22/361,873.70 - Step 6: Final answer
x = 492,946.95
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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.