Finding the Fourth Proportional to 262,642.95, 362,432.40 and 155,222.99
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Solution
The fourth proportional to 262,642.95, 362,432.40 and 155,222.99 is: 214,198.93
Step by Step Solution
- Step 1: Write the proportion equation
262,642.95 : 362,432.40 = 155,222.99 : x - Step 2: Convert to fraction form
262,642.95/362,432.40 = 155,222.99/x - Step 3: Cross multiply
262,642.95x = 362,432.40 × 155,222.99 - Step 4: Simplify right side
262,642.95x = 56,257,838,988.71 - Step 5: Solve for x
x = 56,257,838,988.71/262,642.95 - Step 6: Final answer
x = 214,198.93
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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.