Finding the Fourth Proportional to 402,347.70, 555,240.54 and 221,058.05
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Solution
The fourth proportional to 402,347.70, 555,240.54 and 221,058.05 is: 305,060.50
Step by Step Solution
- Step 1: Write the proportion equation
402,347.70 : 555,240.54 = 221,058.05 : x - Step 2: Convert to fraction form
402,347.70/555,240.54 = 221,058.05/x - Step 3: Cross multiply
402,347.70x = 555,240.54 × 221,058.05 - Step 4: Simplify right side
402,347.70x = 122,740,389,948.06 - Step 5: Solve for x
x = 122,740,389,948.06/402,347.70 - Step 6: Final answer
x = 305,060.50
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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.