Finding the Fourth Proportional to 205,042.76, 307,585.86 and 86,726.06
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Solution
The fourth proportional to 205,042.76, 307,585.86 and 86,726.06 is: 130,098.28
Step by Step Solution
- Step 1: Write the proportion equation
205,042.76 : 307,585.86 = 86,726.06 : x - Step 2: Convert to fraction form
205,042.76/307,585.86 = 86,726.06/x - Step 3: Cross multiply
205,042.76x = 307,585.86 × 86,726.06 - Step 4: Simplify right side
205,042.76x = 26,675,709,749.51 - Step 5: Solve for x
x = 26,675,709,749.51/205,042.76 - Step 6: Final answer
x = 130,098.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.