Finding the Fourth Proportional to 385,544.18, 531,987.49 and 242,202.71
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Solution
The fourth proportional to 385,544.18, 531,987.49 and 242,202.71 is: 334,199.86
Step by Step Solution
- Step 1: Write the proportion equation
385,544.18 : 531,987.49 = 242,202.71 : x - Step 2: Convert to fraction form
385,544.18/531,987.49 = 242,202.71/x - Step 3: Cross multiply
385,544.18x = 531,987.49 × 242,202.71 - Step 4: Simplify right side
385,544.18x = 128,848,811,764.10 - Step 5: Solve for x
x = 128,848,811,764.10/385,544.18 - Step 6: Final answer
x = 334,199.86
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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.