Finding the Fourth Proportional to 400,859.52, 553,169.94 and 239,803.62
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Solution
The fourth proportional to 400,859.52, 553,169.94 and 239,803.62 is: 330,919.31
Step by Step Solution
- Step 1: Write the proportion equation
400,859.52 : 553,169.94 = 239,803.62 : x - Step 2: Convert to fraction form
400,859.52/553,169.94 = 239,803.62/x - Step 3: Cross multiply
400,859.52x = 553,169.94 × 239,803.62 - Step 4: Simplify right side
400,859.52x = 132,652,154,087.18 - Step 5: Solve for x
x = 132,652,154,087.18/400,859.52 - Step 6: Final answer
x = 330,919.31
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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.