Finding the Fourth Proportional to 281,779.47, 388,895.49 and 174,384.09
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Solution
The fourth proportional to 281,779.47, 388,895.49 and 174,384.09 is: 240,674.69
Step by Step Solution
- Step 1: Write the proportion equation
281,779.47 : 388,895.49 = 174,384.09 : x - Step 2: Convert to fraction form
281,779.47/388,895.49 = 174,384.09/x - Step 3: Cross multiply
281,779.47x = 388,895.49 × 174,384.09 - Step 4: Simplify right side
281,779.47x = 67,817,186,128.75 - Step 5: Solve for x
x = 67,817,186,128.75/281,779.47 - Step 6: Final answer
x = 240,674.69
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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.