Finding the Fourth Proportional to 417,728.72, 576,466.08 and 226,742.08
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Solution
The fourth proportional to 417,728.72, 576,466.08 and 226,742.08 is: 312,904.31
Step by Step Solution
- Step 1: Write the proportion equation
417,728.72 : 576,466.08 = 226,742.08 : x - Step 2: Convert to fraction form
417,728.72/576,466.08 = 226,742.08/x - Step 3: Cross multiply
417,728.72x = 576,466.08 × 226,742.08 - Step 4: Simplify right side
417,728.72x = 130,709,118,028.65 - Step 5: Solve for x
x = 130,709,118,028.65/417,728.72 - Step 6: Final answer
x = 312,904.31
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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.