Finding the Fourth Proportional to 331,315.10, 497,118.45 and 153,730.70
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Solution
The fourth proportional to 331,315.10, 497,118.45 and 153,730.70 is: 230,663.70
Step by Step Solution
- Step 1: Write the proportion equation
331,315.10 : 497,118.45 = 153,730.70 : x - Step 2: Convert to fraction form
331,315.10/497,118.45 = 153,730.70/x - Step 3: Cross multiply
331,315.10x = 497,118.45 × 153,730.70 - Step 4: Simplify right side
331,315.10x = 76,422,367,301.42 - Step 5: Solve for x
x = 76,422,367,301.42/331,315.10 - Step 6: Final answer
x = 230,663.70
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1.5x scale
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.