Finding the Fourth Proportional to 331,659.68, 457,690.80 and 180,756.68
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Solution
The fourth proportional to 331,659.68, 457,690.80 and 180,756.68 is: 249,444.46
Step by Step Solution
- Step 1: Write the proportion equation
331,659.68 : 457,690.80 = 180,756.68 : x - Step 2: Convert to fraction form
331,659.68/457,690.80 = 180,756.68/x - Step 3: Cross multiply
331,659.68x = 457,690.80 × 180,756.68 - Step 4: Simplify right side
331,659.68x = 82,730,669,474.54 - Step 5: Solve for x
x = 82,730,669,474.54/331,659.68 - Step 6: Final answer
x = 249,444.46
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1.5x scale
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.