Finding the Fourth Proportional to 316,985.65, 437,484.99 and 196,165.81
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Solution
The fourth proportional to 316,985.65, 437,484.99 and 196,165.81 is: 270,736.54
Step by Step Solution
- Step 1: Write the proportion equation
316,985.65 : 437,484.99 = 196,165.81 : x - Step 2: Convert to fraction form
316,985.65/437,484.99 = 196,165.81/x - Step 3: Cross multiply
316,985.65x = 437,484.99 × 196,165.81 - Step 4: Simplify right side
316,985.65x = 85,819,597,426.19 - Step 5: Solve for x
x = 85,819,597,426.19/316,985.65 - Step 6: Final answer
x = 270,736.54
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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.