Finding the Fourth Proportional to 207,291.20, 285,874.08 and 135,648.32
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Solution
The fourth proportional to 207,291.20, 285,874.08 and 135,648.32 is: 187,071.80
Step by Step Solution
- Step 1: Write the proportion equation
207,291.20 : 285,874.08 = 135,648.32 : x - Step 2: Convert to fraction form
207,291.20/285,874.08 = 135,648.32/x - Step 3: Cross multiply
207,291.20x = 285,874.08 × 135,648.32 - Step 4: Simplify right side
207,291.20x = 38,778,338,683.55 - Step 5: Solve for x
x = 38,778,338,683.55/207,291.20 - Step 6: Final answer
x = 187,071.80
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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.