Finding the Fourth Proportional to 331,246.62, 457,057.35 and 210,407.58
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Solution
The fourth proportional to 331,246.62, 457,057.35 and 210,407.58 is: 290,322.45
Step by Step Solution
- Step 1: Write the proportion equation
331,246.62 : 457,057.35 = 210,407.58 : x - Step 2: Convert to fraction form
331,246.62/457,057.35 = 210,407.58/x - Step 3: Cross multiply
331,246.62x = 457,057.35 × 210,407.58 - Step 4: Simplify right side
331,246.62x = 96,168,330,934.71 - Step 5: Solve for x
x = 96,168,330,934.71/331,246.62 - Step 6: Final answer
x = 290,322.45
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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.