Finding the Fourth Proportional to 285,055.24, 393,335.94 and 157,730.44
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Solution
The fourth proportional to 285,055.24, 393,335.94 and 157,730.44 is: 217,645.71
Step by Step Solution
- Step 1: Write the proportion equation
285,055.24 : 393,335.94 = 157,730.44 : x - Step 2: Convert to fraction form
285,055.24/393,335.94 = 157,730.44/x - Step 3: Cross multiply
285,055.24x = 393,335.94 × 157,730.44 - Step 4: Simplify right side
285,055.24x = 62,041,050,884.01 - Step 5: Solve for x
x = 62,041,050,884.01/285,055.24 - Step 6: Final answer
x = 217,645.71
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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.