Finding the Fourth Proportional to 447,077.88, 616,964.04 and 243,128.88
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Solution
The fourth proportional to 447,077.88, 616,964.04 and 243,128.88 is: 335,515.99
Step by Step Solution
- Step 1: Write the proportion equation
447,077.88 : 616,964.04 = 243,128.88 : x - Step 2: Convert to fraction form
447,077.88/616,964.04 = 243,128.88/x - Step 3: Cross multiply
447,077.88x = 616,964.04 × 243,128.88 - Step 4: Simplify right side
447,077.88x = 150,001,776,045.48 - Step 5: Solve for x
x = 150,001,776,045.48/447,077.88 - Step 6: Final answer
x = 335,515.99
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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.