Finding the Fourth Proportional to 403,030.35, 556,261.43 and 231,063.84
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Solution
The fourth proportional to 403,030.35, 556,261.43 and 231,063.84 is: 318,913.70
Step by Step Solution
- Step 1: Write the proportion equation
403,030.35 : 556,261.43 = 231,063.84 : x - Step 2: Convert to fraction form
403,030.35/556,261.43 = 231,063.84/x - Step 3: Cross multiply
403,030.35x = 556,261.43 × 231,063.84 - Step 4: Simplify right side
403,030.35x = 128,531,900,904.37 - Step 5: Solve for x
x = 128,531,900,904.37/403,030.35 - Step 6: Final answer
x = 318,913.70
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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.