Finding the Fourth Proportional to 415,154.17, 572,919.11 and 245,404.09
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Solution
The fourth proportional to 415,154.17, 572,919.11 and 245,404.09 is: 338,661.40
Step by Step Solution
- Step 1: Write the proportion equation
415,154.17 : 572,919.11 = 245,404.09 : x - Step 2: Convert to fraction form
415,154.17/572,919.11 = 245,404.09/x - Step 3: Cross multiply
415,154.17x = 572,919.11 × 245,404.09 - Step 4: Simplify right side
415,154.17x = 140,596,691,606.14 - Step 5: Solve for x
x = 140,596,691,606.14/415,154.17 - Step 6: Final answer
x = 338,661.40
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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.