Finding the Fourth Proportional to 307,613.80, 461,420.70 and 141,725.80
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Solution
The fourth proportional to 307,613.80, 461,420.70 and 141,725.80 is: 212,588.70
Step by Step Solution
- Step 1: Write the proportion equation
307,613.80 : 461,420.70 = 141,725.80 : x - Step 2: Convert to fraction form
307,613.80/461,420.70 = 141,725.80/x - Step 3: Cross multiply
307,613.80x = 461,420.70 × 141,725.80 - Step 4: Simplify right side
307,613.80x = 65,395,217,844.06 - Step 5: Solve for x
x = 65,395,217,844.06/307,613.80 - Step 6: Final answer
x = 212,588.70
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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.