Finding the Fourth Proportional to 353,109.95, 529,497.97 and 128,313.71
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Solution
The fourth proportional to 353,109.95, 529,497.97 and 128,313.71 is: 192,409.90
Step by Step Solution
- Step 1: Write the proportion equation
353,109.95 : 529,497.97 = 128,313.71 : x - Step 2: Convert to fraction form
353,109.95/529,497.97 = 128,313.71/x - Step 3: Cross multiply
353,109.95x = 529,497.97 × 128,313.71 - Step 4: Simplify right side
353,109.95x = 67,941,848,968.17 - Step 5: Solve for x
x = 67,941,848,968.17/353,109.95 - Step 6: Final answer
x = 192,409.90
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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.