Finding the Fourth Proportional to 287,387.13, 431,462.20 and 245,536.05
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Solution
The fourth proportional to 287,387.13, 431,462.20 and 245,536.05 is: 368,630.02
Step by Step Solution
- Step 1: Write the proportion equation
287,387.13 : 431,462.20 = 245,536.05 : x - Step 2: Convert to fraction form
287,387.13/431,462.20 = 245,536.05/x - Step 3: Cross multiply
287,387.13x = 431,462.20 × 245,536.05 - Step 4: Simplify right side
287,387.13x = 105,939,524,312.31 - Step 5: Solve for x
x = 105,939,524,312.31/287,387.13 - Step 6: Final answer
x = 368,630.02
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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.