Finding the Fourth Proportional to 230,747.28, 318,345.93 and 135,219.12
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Solution
The fourth proportional to 230,747.28, 318,345.93 and 135,219.12 is: 186,552.39
Step by Step Solution
- Step 1: Write the proportion equation
230,747.28 : 318,345.93 = 135,219.12 : x - Step 2: Convert to fraction form
230,747.28/318,345.93 = 135,219.12/x - Step 3: Cross multiply
230,747.28x = 318,345.93 × 135,219.12 - Step 4: Simplify right side
230,747.28x = 43,046,456,510.18 - Step 5: Solve for x
x = 43,046,456,510.18/230,747.28 - Step 6: Final answer
x = 186,552.39
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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.