Finding the Fourth Proportional to 361,887.13, 499,427.09 and 208,953.55
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Solution
The fourth proportional to 361,887.13, 499,427.09 and 208,953.55 is: 288,369.09
Step by Step Solution
- Step 1: Write the proportion equation
361,887.13 : 499,427.09 = 208,953.55 : x - Step 2: Convert to fraction form
361,887.13/499,427.09 = 208,953.55/x - Step 3: Cross multiply
361,887.13x = 499,427.09 × 208,953.55 - Step 4: Simplify right side
361,887.13x = 104,357,063,421.67 - Step 5: Solve for x
x = 104,357,063,421.67/361,887.13 - Step 6: Final answer
x = 288,369.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.