Finding the Fourth Proportional to 349,747.80, 524,621.70 and 139,536.60
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Solution
The fourth proportional to 349,747.80, 524,621.70 and 139,536.60 is: 209,304.90
Step by Step Solution
- Step 1: Write the proportion equation
349,747.80 : 524,621.70 = 139,536.60 : x - Step 2: Convert to fraction form
349,747.80/524,621.70 = 139,536.60/x - Step 3: Cross multiply
349,747.80x = 524,621.70 × 139,536.60 - Step 4: Simplify right side
349,747.80x = 73,203,928,304.22 - Step 5: Solve for x
x = 73,203,928,304.22/349,747.80 - Step 6: Final answer
x = 209,304.90
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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.