Finding the Fourth Proportional to 315,596.19, 473,404.01 and 138,011.79
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Solution
The fourth proportional to 315,596.19, 473,404.01 and 138,011.79 is: 207,021.94
Step by Step Solution
- Step 1: Write the proportion equation
315,596.19 : 473,404.01 = 138,011.79 : x - Step 2: Convert to fraction form
315,596.19/473,404.01 = 138,011.79/x - Step 3: Cross multiply
315,596.19x = 473,404.01 × 138,011.79 - Step 4: Simplify right side
315,596.19x = 65,335,334,123.22 - Step 5: Solve for x
x = 65,335,334,123.22/315,596.19 - Step 6: Final answer
x = 207,021.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.