Finding the Fourth Proportional to 400,455.64, 552,574.20 and 239,276.62
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Solution
The fourth proportional to 400,455.64, 552,574.20 and 239,276.62 is: 330,169.12
Step by Step Solution
- Step 1: Write the proportion equation
400,455.64 : 552,574.20 = 239,276.62 : x - Step 2: Convert to fraction form
400,455.64/552,574.20 = 239,276.62/x - Step 3: Cross multiply
400,455.64x = 552,574.20 × 239,276.62 - Step 4: Simplify right side
400,455.64x = 132,218,086,875.20 - Step 5: Solve for x
x = 132,218,086,875.20/400,455.64 - Step 6: Final answer
x = 330,169.12
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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.