Finding the Fourth Proportional to 216,312.24, 324,485.40 and 76,102.32
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Solution
The fourth proportional to 216,312.24, 324,485.40 and 76,102.32 is: 114,159.47
Step by Step Solution
- Step 1: Write the proportion equation
216,312.24 : 324,485.40 = 76,102.32 : x - Step 2: Convert to fraction form
216,312.24/324,485.40 = 76,102.32/x - Step 3: Cross multiply
216,312.24x = 324,485.40 × 76,102.32 - Step 4: Simplify right side
216,312.24x = 24,694,091,746.13 - Step 5: Solve for x
x = 24,694,091,746.13/216,312.24 - Step 6: Final answer
x = 114,159.47
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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.