Finding the Fourth Proportional to 292,798.74, 403,900.86 and 202,202.28
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Solution
The fourth proportional to 292,798.74, 403,900.86 and 202,202.28 is: 278,927.69
Step by Step Solution
- Step 1: Write the proportion equation
292,798.74 : 403,900.86 = 202,202.28 : x - Step 2: Convert to fraction form
292,798.74/403,900.86 = 202,202.28/x - Step 3: Cross multiply
292,798.74x = 403,900.86 × 202,202.28 - Step 4: Simplify right side
292,798.74x = 81,669,674,785.96 - Step 5: Solve for x
x = 81,669,674,785.96/292,798.74 - Step 6: Final answer
x = 278,927.69
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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.