Finding the Fourth Proportional to 457,291.14, 686,013.66 and 169,119.68
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Solution
The fourth proportional to 457,291.14, 686,013.66 and 169,119.68 is: 253,707.98
Step by Step Solution
- Step 1: Write the proportion equation
457,291.14 : 686,013.66 = 169,119.68 : x - Step 2: Convert to fraction form
457,291.14/686,013.66 = 169,119.68/x - Step 3: Cross multiply
457,291.14x = 686,013.66 × 169,119.68 - Step 4: Simplify right side
457,291.14x = 116,018,410,654.83 - Step 5: Solve for x
x = 116,018,410,654.83/457,291.14 - Step 6: Final answer
x = 253,707.98
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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.