Finding the Fourth Proportional to 238,491.84, 357,628.48 and 142,473.12
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Solution
The fourth proportional to 238,491.84, 357,628.48 and 142,473.12 is: 213,644.40
Step by Step Solution
- Step 1: Write the proportion equation
238,491.84 : 357,628.48 = 142,473.12 : x - Step 2: Convert to fraction form
238,491.84/357,628.48 = 142,473.12/x - Step 3: Cross multiply
238,491.84x = 357,628.48 × 142,473.12 - Step 4: Simplify right side
238,491.84x = 50,952,445,346.46 - Step 5: Solve for x
x = 50,952,445,346.46/238,491.84 - Step 6: Final answer
x = 213,644.40
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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.