Finding the Fourth Proportional to 470,427.12, 707,040.36 and 221,284.08
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Solution
The fourth proportional to 470,427.12, 707,040.36 and 221,284.08 is: 332,584.52
Step by Step Solution
- Step 1: Write the proportion equation
470,427.12 : 707,040.36 = 221,284.08 : x - Step 2: Convert to fraction form
470,427.12/707,040.36 = 221,284.08/x - Step 3: Cross multiply
470,427.12x = 707,040.36 × 221,284.08 - Step 4: Simplify right side
470,427.12x = 156,456,775,585.47 - Step 5: Solve for x
x = 156,456,775,585.47/470,427.12 - Step 6: Final answer
x = 332,584.52
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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.