Finding the Fourth Proportional to 402,541.41, 555,512.82 and 221,270.07
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Solution
The fourth proportional to 402,541.41, 555,512.82 and 221,270.07 is: 305,355.82
Step by Step Solution
- Step 1: Write the proportion equation
402,541.41 : 555,512.82 = 221,270.07 : x - Step 2: Convert to fraction form
402,541.41/555,512.82 = 221,270.07/x - Step 3: Cross multiply
402,541.41x = 555,512.82 × 221,270.07 - Step 4: Simplify right side
402,541.41x = 122,918,360,567.30 - Step 5: Solve for x
x = 122,918,360,567.30/402,541.41 - Step 6: Final answer
x = 305,355.82
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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.