Finding the Fourth Proportional to 313,756.36, 470,630.40 and 77,101.12
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Solution
The fourth proportional to 313,756.36, 470,630.40 and 77,101.12 is: 115,650.66
Step by Step Solution
- Step 1: Write the proportion equation
313,756.36 : 470,630.40 = 77,101.12 : x - Step 2: Convert to fraction form
313,756.36/470,630.40 = 77,101.12/x - Step 3: Cross multiply
313,756.36x = 470,630.40 × 77,101.12 - Step 4: Simplify right side
313,756.36x = 36,286,130,946.05 - Step 5: Solve for x
x = 36,286,130,946.05/313,756.36 - Step 6: Final answer
x = 115,650.66
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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.