Finding the Fourth Proportional to 318,925.46, 440,115.09 and 175,682.18
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Solution
The fourth proportional to 318,925.46, 440,115.09 and 175,682.18 is: 242,440.28
Step by Step Solution
- Step 1: Write the proportion equation
318,925.46 : 440,115.09 = 175,682.18 : x - Step 2: Convert to fraction form
318,925.46/440,115.09 = 175,682.18/x - Step 3: Cross multiply
318,925.46x = 440,115.09 × 175,682.18 - Step 4: Simplify right side
318,925.46x = 77,320,378,462.10 - Step 5: Solve for x
x = 77,320,378,462.10/318,925.46 - Step 6: Final answer
x = 242,440.28
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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.