Finding the Fourth Proportional to 352,937.40, 529,406.10 and 313,279.80
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Solution
The fourth proportional to 352,937.40, 529,406.10 and 313,279.80 is: 469,919.70
Step by Step Solution
- Step 1: Write the proportion equation
352,937.40 : 529,406.10 = 313,279.80 : x - Step 2: Convert to fraction form
352,937.40/529,406.10 = 313,279.80/x - Step 3: Cross multiply
352,937.40x = 529,406.10 × 313,279.80 - Step 4: Simplify right side
352,937.40x = 165,852,237,126.78 - Step 5: Solve for x
x = 165,852,237,126.78/352,937.40 - Step 6: Final answer
x = 469,919.70
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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.