Finding the Fourth Proportional to 528,079.20, 792,118.80 and 173,129.10
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Solution
The fourth proportional to 528,079.20, 792,118.80 and 173,129.10 is: 259,693.65
Step by Step Solution
- Step 1: Write the proportion equation
528,079.20 : 792,118.80 = 173,129.10 : x - Step 2: Convert to fraction form
528,079.20/792,118.80 = 173,129.10/x - Step 3: Cross multiply
528,079.20x = 792,118.80 × 173,129.10 - Step 4: Simplify right side
528,079.20x = 137,138,814,937.08 - Step 5: Solve for x
x = 137,138,814,937.08/528,079.20 - Step 6: Final answer
x = 259,693.65
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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.