Finding the Fourth Proportional to 402,524.40, 555,484.12 and 221,236.28
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Solution
The fourth proportional to 402,524.40, 555,484.12 and 221,236.28 is: 305,306.31
Step by Step Solution
- Step 1: Write the proportion equation
402,524.40 : 555,484.12 = 221,236.28 : x - Step 2: Convert to fraction form
402,524.40/555,484.12 = 221,236.28/x - Step 3: Cross multiply
402,524.40x = 555,484.12 × 221,236.28 - Step 4: Simplify right side
402,524.40x = 122,893,240,307.87 - Step 5: Solve for x
x = 122,893,240,307.87/402,524.40 - Step 6: Final answer
x = 305,306.31
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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.