Finding the Fourth Proportional to 313,963.74, 470,961.90 and 103,618.08
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Solution
The fourth proportional to 313,963.74, 470,961.90 and 103,618.08 is: 155,432.50
Step by Step Solution
- Step 1: Write the proportion equation
313,963.74 : 470,961.90 = 103,618.08 : x - Step 2: Convert to fraction form
313,963.74/470,961.90 = 103,618.08/x - Step 3: Cross multiply
313,963.74x = 470,961.90 × 103,618.08 - Step 4: Simplify right side
313,963.74x = 48,800,167,831.15 - Step 5: Solve for x
x = 48,800,167,831.15/313,963.74 - Step 6: Final answer
x = 155,432.50
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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.