Finding the Fourth Proportional to 402,494.83, 555,431.12 and 230,407.09
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Solution
The fourth proportional to 402,494.83, 555,431.12 and 230,407.09 is: 317,955.06
Step by Step Solution
- Step 1: Write the proportion equation
402,494.83 : 555,431.12 = 230,407.09 : x - Step 2: Convert to fraction form
402,494.83/555,431.12 = 230,407.09/x - Step 3: Cross multiply
402,494.83x = 555,431.12 × 230,407.09 - Step 4: Simplify right side
402,494.83x = 127,975,266,378.05 - Step 5: Solve for x
x = 127,975,266,378.05/402,494.83 - Step 6: Final answer
x = 317,955.06
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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.