Finding the Fourth Proportional to 402,535.36, 555,487.05 and 230,447.62
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Solution
The fourth proportional to 402,535.36, 555,487.05 and 230,447.62 is: 318,010.99
Step by Step Solution
- Step 1: Write the proportion equation
402,535.36 : 555,487.05 = 230,447.62 : x - Step 2: Convert to fraction form
402,535.36/555,487.05 = 230,447.62/x - Step 3: Cross multiply
402,535.36x = 555,487.05 × 230,447.62 - Step 4: Simplify right side
402,535.36x = 128,010,668,613.32 - Step 5: Solve for x
x = 128,010,668,613.32/402,535.36 - Step 6: Final answer
x = 318,010.99
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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.