Finding the Fourth Proportional to 430,643.76, 646,203.48 and 177,865.44
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Solution
The fourth proportional to 430,643.76, 646,203.48 and 177,865.44 is: 266,896.39
Step by Step Solution
- Step 1: Write the proportion equation
430,643.76 : 646,203.48 = 177,865.44 : x - Step 2: Convert to fraction form
430,643.76/646,203.48 = 177,865.44/x - Step 3: Cross multiply
430,643.76x = 646,203.48 × 177,865.44 - Step 4: Simplify right side
430,643.76x = 114,937,266,299.73 - Step 5: Solve for x
x = 114,937,266,299.73/430,643.76 - Step 6: Final answer
x = 266,896.39
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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.