Finding the Fourth Proportional to 211,457.36, 291,811.56 and 115,964.76
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Solution
The fourth proportional to 211,457.36, 291,811.56 and 115,964.76 is: 160,031.59
Step by Step Solution
- Step 1: Write the proportion equation
211,457.36 : 291,811.56 = 115,964.76 : x - Step 2: Convert to fraction form
211,457.36/291,811.56 = 115,964.76/x - Step 3: Cross multiply
211,457.36x = 291,811.56 × 115,964.76 - Step 4: Simplify right side
211,457.36x = 33,839,857,520.63 - Step 5: Solve for x
x = 33,839,857,520.63/211,457.36 - Step 6: Final answer
x = 160,031.59
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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.