Finding the Fourth Proportional to 317,653.63, 438,358.98 and 174,412.42
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Solution
The fourth proportional to 317,653.63, 438,358.98 and 174,412.42 is: 240,687.48
Step by Step Solution
- Step 1: Write the proportion equation
317,653.63 : 438,358.98 = 174,412.42 : x - Step 2: Convert to fraction form
317,653.63/438,358.98 = 174,412.42/x - Step 3: Cross multiply
317,653.63x = 438,358.98 × 174,412.42 - Step 4: Simplify right side
317,653.63x = 76,455,250,530.53 - Step 5: Solve for x
x = 76,455,250,530.53/317,653.63 - Step 6: Final answer
x = 240,687.48
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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.