Finding the Fourth Proportional to 253,348.55, 349,615.59 and 138,626.75
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Solution
The fourth proportional to 253,348.55, 349,615.59 and 138,626.75 is: 191,301.95
Step by Step Solution
- Step 1: Write the proportion equation
253,348.55 : 349,615.59 = 138,626.75 : x - Step 2: Convert to fraction form
253,348.55/349,615.59 = 138,626.75/x - Step 3: Cross multiply
253,348.55x = 349,615.59 × 138,626.75 - Step 4: Simplify right side
253,348.55x = 48,466,071,242.95 - Step 5: Solve for x
x = 48,466,071,242.95/253,348.55 - Step 6: Final answer
x = 191,301.95
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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.