Finding the Fourth Proportional to 318,753.74, 439,889.84 and 175,518.91
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Solution
The fourth proportional to 318,753.74, 439,889.84 and 175,518.91 is: 242,221.43
Step by Step Solution
- Step 1: Write the proportion equation
318,753.74 : 439,889.84 = 175,518.91 : x - Step 2: Convert to fraction form
318,753.74/439,889.84 = 175,518.91/x - Step 3: Cross multiply
318,753.74x = 439,889.84 × 175,518.91 - Step 4: Simplify right side
318,753.74x = 77,208,985,236.87 - Step 5: Solve for x
x = 77,208,985,236.87/318,753.74 - Step 6: Final answer
x = 242,221.43
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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.