Finding the Fourth Proportional to 486,089.80, 729,134.70 and 153,665.80
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Solution
The fourth proportional to 486,089.80, 729,134.70 and 153,665.80 is: 230,498.70
Step by Step Solution
- Step 1: Write the proportion equation
486,089.80 : 729,134.70 = 153,665.80 : x - Step 2: Convert to fraction form
486,089.80/729,134.70 = 153,665.80/x - Step 3: Cross multiply
486,089.80x = 729,134.70 × 153,665.80 - Step 4: Simplify right side
486,089.80x = 112,043,066,983.26 - Step 5: Solve for x
x = 112,043,066,983.26/486,089.80 - Step 6: Final answer
x = 230,498.70
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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.