Finding the Fourth Proportional to 356,417.18, 491,734.62 and 203,345.42
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Solution
The fourth proportional to 356,417.18, 491,734.62 and 203,345.42 is: 280,547.60
Step by Step Solution
- Step 1: Write the proportion equation
356,417.18 : 491,734.62 = 203,345.42 : x - Step 2: Convert to fraction form
356,417.18/491,734.62 = 203,345.42/x - Step 3: Cross multiply
356,417.18x = 491,734.62 × 203,345.42 - Step 4: Simplify right side
356,417.18x = 99,991,982,832.44 - Step 5: Solve for x
x = 99,991,982,832.44/356,417.18 - Step 6: Final answer
x = 280,547.60
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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.