Finding the Fourth Proportional to 331,478.04, 457,438.86 and 180,574.68
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Solution
The fourth proportional to 331,478.04, 457,438.86 and 180,574.68 is: 249,192.60
Step by Step Solution
- Step 1: Write the proportion equation
331,478.04 : 457,438.86 = 180,574.68 : x - Step 2: Convert to fraction form
331,478.04/457,438.86 = 180,574.68/x - Step 3: Cross multiply
331,478.04x = 457,438.86 × 180,574.68 - Step 4: Simplify right side
331,478.04x = 82,601,875,764.06 - Step 5: Solve for x
x = 82,601,875,764.06/331,478.04 - Step 6: Final answer
x = 249,192.60
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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.