Finding the Fourth Proportional to 230,364.18, 317,928.39 and 128,398.95
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Solution
The fourth proportional to 230,364.18, 317,928.39 and 128,398.95 is: 177,204.94
Step by Step Solution
- Step 1: Write the proportion equation
230,364.18 : 317,928.39 = 128,398.95 : x - Step 2: Convert to fraction form
230,364.18/317,928.39 = 128,398.95/x - Step 3: Cross multiply
230,364.18x = 317,928.39 × 128,398.95 - Step 4: Simplify right side
230,364.18x = 40,821,671,451.19 - Step 5: Solve for x
x = 40,821,671,451.19/230,364.18 - Step 6: Final answer
x = 177,204.94
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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.