Finding the Fourth Proportional to 421,155.95, 581,193.79 and 230,169.29
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Solution
The fourth proportional to 421,155.95, 581,193.79 and 230,169.29 is: 317,632.84
Step by Step Solution
- Step 1: Write the proportion equation
421,155.95 : 581,193.79 = 230,169.29 : x - Step 2: Convert to fraction form
421,155.95/581,193.79 = 230,169.29/x - Step 3: Cross multiply
421,155.95x = 581,193.79 × 230,169.29 - Step 4: Simplify right side
421,155.95x = 133,772,958,515.32 - Step 5: Solve for x
x = 133,772,958,515.32/421,155.95 - Step 6: Final answer
x = 317,632.84
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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.