Finding the Fourth Proportional to 290,234.43, 435,354.35 and 87,831.99
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Solution
The fourth proportional to 290,234.43, 435,354.35 and 87,831.99 is: 131,748.80
Step by Step Solution
- Step 1: Write the proportion equation
290,234.43 : 435,354.35 = 87,831.99 : x - Step 2: Convert to fraction form
290,234.43/435,354.35 = 87,831.99/x - Step 3: Cross multiply
290,234.43x = 435,354.35 × 87,831.99 - Step 4: Simplify right side
290,234.43x = 38,238,038,476.50 - Step 5: Solve for x
x = 38,238,038,476.50/290,234.43 - Step 6: Final answer
x = 131,748.80
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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.