Finding the Fourth Proportional to 402,567.06, 555,536.15 and 221,275.09
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Solution
The fourth proportional to 402,567.06, 555,536.15 and 221,275.09 is: 305,356.11
Step by Step Solution
- Step 1: Write the proportion equation
402,567.06 : 555,536.15 = 221,275.09 : x - Step 2: Convert to fraction form
402,567.06/555,536.15 = 221,275.09/x - Step 3: Cross multiply
402,567.06x = 555,536.15 × 221,275.09 - Step 4: Simplify right side
402,567.06x = 122,926,311,384.99 - Step 5: Solve for x
x = 122,926,311,384.99/402,567.06 - Step 6: Final answer
x = 305,356.11
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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.