Finding the Fourth Proportional to 176,345.21, 243,395.15 and 115,921.44
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Solution
The fourth proportional to 176,345.21, 243,395.15 and 115,921.44 is: 159,997.06
Step by Step Solution
- Step 1: Write the proportion equation
176,345.21 : 243,395.15 = 115,921.44 : x - Step 2: Convert to fraction form
176,345.21/243,395.15 = 115,921.44/x - Step 3: Cross multiply
176,345.21x = 243,395.15 × 115,921.44 - Step 4: Simplify right side
176,345.21x = 28,214,715,697.41 - Step 5: Solve for x
x = 28,214,715,697.41/176,345.21 - Step 6: Final answer
x = 159,997.06
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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.