Finding the Fourth Proportional to 145,652.71, 218,391.58 and 56,947.99
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Solution
The fourth proportional to 145,652.71, 218,391.58 and 56,947.99 is: 85,387.78
Step by Step Solution
- Step 1: Write the proportion equation
145,652.71 : 218,391.58 = 56,947.99 : x - Step 2: Convert to fraction form
145,652.71/218,391.58 = 56,947.99/x - Step 3: Cross multiply
145,652.71x = 218,391.58 × 56,947.99 - Step 4: Simplify right side
145,652.71x = 12,436,961,513.92 - Step 5: Solve for x
x = 12,436,961,513.92/145,652.71 - Step 6: Final answer
x = 85,387.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.