Finding the Fourth Proportional to 307,519.70, 461,279.55 and 141,307.70
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Solution
The fourth proportional to 307,519.70, 461,279.55 and 141,307.70 is: 211,961.55
Step by Step Solution
- Step 1: Write the proportion equation
307,519.70 : 461,279.55 = 141,307.70 : x - Step 2: Convert to fraction form
307,519.70/461,279.55 = 141,307.70/x - Step 3: Cross multiply
307,519.70x = 461,279.55 × 141,307.70 - Step 4: Simplify right side
307,519.70x = 65,182,352,267.54 - Step 5: Solve for x
x = 65,182,352,267.54/307,519.70 - Step 6: Final answer
x = 211,961.55
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Similar ratio
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1.5x scale
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.