Finding the Fourth Proportional to 402,742.28, 555,782.36 and 237,266.31
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Solution
The fourth proportional to 402,742.28, 555,782.36 and 237,266.31 is: 327,426.35
Step by Step Solution
- Step 1: Write the proportion equation
402,742.28 : 555,782.36 = 237,266.31 : x - Step 2: Convert to fraction form
402,742.28/555,782.36 = 237,266.31/x - Step 3: Cross multiply
402,742.28x = 555,782.36 × 237,266.31 - Step 4: Simplify right side
402,742.28x = 131,868,431,952.77 - Step 5: Solve for x
x = 131,868,431,952.77/402,742.28 - Step 6: Final answer
x = 327,426.35
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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.