Finding the Fourth Proportional to 248,435.10, 342,840.06 and 135,257.76
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Solution
The fourth proportional to 248,435.10, 342,840.06 and 135,257.76 is: 186,655.50
Step by Step Solution
- Step 1: Write the proportion equation
248,435.10 : 342,840.06 = 135,257.76 : x - Step 2: Convert to fraction form
248,435.10/342,840.06 = 135,257.76/x - Step 3: Cross multiply
248,435.10x = 342,840.06 × 135,257.76 - Step 4: Simplify right side
248,435.10x = 46,371,778,553.87 - Step 5: Solve for x
x = 46,371,778,553.87/248,435.10 - Step 6: Final answer
x = 186,655.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.