Finding the Fourth Proportional to 456,203.70, 684,305.55 and 206,885.70
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Solution
The fourth proportional to 456,203.70, 684,305.55 and 206,885.70 is: 310,328.55
Step by Step Solution
- Step 1: Write the proportion equation
456,203.70 : 684,305.55 = 206,885.70 : x - Step 2: Convert to fraction form
456,203.70/684,305.55 = 206,885.70/x - Step 3: Cross multiply
456,203.70x = 684,305.55 × 206,885.70 - Step 4: Simplify right side
456,203.70x = 141,573,032,725.64 - Step 5: Solve for x
x = 141,573,032,725.64/456,203.70 - Step 6: Final answer
x = 310,328.55
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Similar ratio
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1.5x scale
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.