Finding the Fourth Proportional to 307,538.10, 461,307.15 and 304,427.70
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Solution
The fourth proportional to 307,538.10, 461,307.15 and 304,427.70 is: 456,641.55
Step by Step Solution
- Step 1: Write the proportion equation
307,538.10 : 461,307.15 = 304,427.70 : x - Step 2: Convert to fraction form
307,538.10/461,307.15 = 304,427.70/x - Step 3: Cross multiply
307,538.10x = 461,307.15 × 304,427.70 - Step 4: Simplify right side
307,538.10x = 140,434,674,668.06 - Step 5: Solve for x
x = 140,434,674,668.06/307,538.10 - Step 6: Final answer
x = 456,641.55
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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.