Finding the Fourth Proportional to 317,439.19, 438,073.28 and 174,208.31
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Solution
The fourth proportional to 317,439.19, 438,073.28 and 174,208.31 is: 240,411.42
Step by Step Solution
- Step 1: Write the proportion equation
317,439.19 : 438,073.28 = 174,208.31 : x - Step 2: Convert to fraction form
317,439.19/438,073.28 = 174,208.31/x - Step 3: Cross multiply
317,439.19x = 438,073.28 × 174,208.31 - Step 4: Simplify right side
317,439.19x = 76,316,005,764.96 - Step 5: Solve for x
x = 76,316,005,764.96/317,439.19 - Step 6: Final answer
x = 240,411.42
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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.