Finding the Fourth Proportional to 230,764.95, 318,455.93 and 128,790.41
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Solution
The fourth proportional to 230,764.95, 318,455.93 and 128,790.41 is: 177,730.92
Step by Step Solution
- Step 1: Write the proportion equation
230,764.95 : 318,455.93 = 128,790.41 : x - Step 2: Convert to fraction form
230,764.95/318,455.93 = 128,790.41/x - Step 3: Cross multiply
230,764.95x = 318,455.93 × 128,790.41 - Step 4: Simplify right side
230,764.95x = 41,014,067,555.40 - Step 5: Solve for x
x = 41,014,067,555.40/230,764.95 - Step 6: Final answer
x = 177,730.92
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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.