Finding the Fourth Proportional to 402,669.98, 555,684.92 and 221,384.99
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Solution
The fourth proportional to 402,669.98, 555,684.92 and 221,384.99 is: 305,511.47
Step by Step Solution
- Step 1: Write the proportion equation
402,669.98 : 555,684.92 = 221,384.99 : x - Step 2: Convert to fraction form
402,669.98/555,684.92 = 221,384.99/x - Step 3: Cross multiply
402,669.98x = 555,684.92 × 221,384.99 - Step 4: Simplify right side
402,669.98x = 123,020,296,572.00 - Step 5: Solve for x
x = 123,020,296,572.00/402,669.98 - Step 6: Final answer
x = 305,511.47
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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.