Finding the Fourth Proportional to 279,437.44, 385,623.71 and 152,113.99
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Solution
The fourth proportional to 279,437.44, 385,623.71 and 152,113.99 is: 209,917.33
Step by Step Solution
- Step 1: Write the proportion equation
279,437.44 : 385,623.71 = 152,113.99 : x - Step 2: Convert to fraction form
279,437.44/385,623.71 = 152,113.99/x - Step 3: Cross multiply
279,437.44x = 385,623.71 × 152,113.99 - Step 4: Simplify right side
279,437.44x = 58,658,760,582.93 - Step 5: Solve for x
x = 58,658,760,582.93/279,437.44 - Step 6: Final answer
x = 209,917.33
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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.