Finding the Fourth Proportional to 313,689.85, 470,536.36 and 77,032.62
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Solution
The fourth proportional to 313,689.85, 470,536.36 and 77,032.62 is: 115,549.32
Step by Step Solution
- Step 1: Write the proportion equation
313,689.85 : 470,536.36 = 77,032.62 : x - Step 2: Convert to fraction form
313,689.85/470,536.36 = 77,032.62/x - Step 3: Cross multiply
313,689.85x = 470,536.36 × 77,032.62 - Step 4: Simplify right side
313,689.85x = 36,246,648,423.48 - Step 5: Solve for x
x = 36,246,648,423.48/313,689.85 - Step 6: Final answer
x = 115,549.32
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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.