Finding the Fourth Proportional to 330,542.91, 495,814.47 and 90,659.31
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Solution
The fourth proportional to 330,542.91, 495,814.47 and 90,659.31 is: 135,988.99
Step by Step Solution
- Step 1: Write the proportion equation
330,542.91 : 495,814.47 = 90,659.31 : x - Step 2: Convert to fraction form
330,542.91/495,814.47 = 90,659.31/x - Step 3: Cross multiply
330,542.91x = 495,814.47 × 90,659.31 - Step 4: Simplify right side
330,542.91x = 44,950,195,259.14 - Step 5: Solve for x
x = 44,950,195,259.14/330,542.91 - Step 6: Final answer
x = 135,988.99
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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.