Finding the Fourth Proportional to 318,216.18, 439,029.05 and 197,313.96
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Solution
The fourth proportional to 318,216.18, 439,029.05 and 197,313.96 is: 272,225.50
Step by Step Solution
- Step 1: Write the proportion equation
318,216.18 : 439,029.05 = 197,313.96 : x - Step 2: Convert to fraction form
318,216.18/439,029.05 = 197,313.96/x - Step 3: Cross multiply
318,216.18x = 439,029.05 × 197,313.96 - Step 4: Simplify right side
318,216.18x = 86,626,558,708.68 - Step 5: Solve for x
x = 86,626,558,708.68/318,216.18 - Step 6: Final answer
x = 272,225.50
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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.