Finding the Fourth Proportional to 169,209.19, 253,635.18 and 56,782.81
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Solution
The fourth proportional to 169,209.19, 253,635.18 and 56,782.81 is: 85,114.28
Step by Step Solution
- Step 1: Write the proportion equation
169,209.19 : 253,635.18 = 56,782.81 : x - Step 2: Convert to fraction form
169,209.19/253,635.18 = 56,782.81/x - Step 3: Cross multiply
169,209.19x = 253,635.18 × 56,782.81 - Step 4: Simplify right side
169,209.19x = 14,402,118,235.26 - Step 5: Solve for x
x = 14,402,118,235.26/169,209.19 - Step 6: Final answer
x = 85,114.28
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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.