Finding the Fourth Proportional to 403,157.85, 556,358.27 and 221,882.91
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Solution
The fourth proportional to 403,157.85, 556,358.27 and 221,882.91 is: 306,198.65
Step by Step Solution
- Step 1: Write the proportion equation
403,157.85 : 556,358.27 = 221,882.91 : x - Step 2: Convert to fraction form
403,157.85/556,358.27 = 221,882.91/x - Step 3: Cross multiply
403,157.85x = 556,358.27 × 221,882.91 - Step 4: Simplify right side
403,157.85x = 123,446,390,840.75 - Step 5: Solve for x
x = 123,446,390,840.75/403,157.85 - Step 6: Final answer
x = 306,198.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.