Finding the Fourth Proportional to 180,125.30, 248,603.15 and 121,955.65
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Solution
The fourth proportional to 180,125.30, 248,603.15 and 121,955.65 is: 168,319.26
Step by Step Solution
- Step 1: Write the proportion equation
180,125.30 : 248,603.15 = 121,955.65 : x - Step 2: Convert to fraction form
180,125.30/248,603.15 = 121,955.65/x - Step 3: Cross multiply
180,125.30x = 248,603.15 × 121,955.65 - Step 4: Simplify right side
180,125.30x = 30,318,558,433.68 - Step 5: Solve for x
x = 30,318,558,433.68/180,125.30 - Step 6: Final answer
x = 168,319.26
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1.5x scale
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.