Finding the Fourth Proportional to 490,171.05, 676,422.54 and 272,374.10
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Solution
The fourth proportional to 490,171.05, 676,422.54 and 272,374.10 is: 375,868.75
Step by Step Solution
- Step 1: Write the proportion equation
490,171.05 : 676,422.54 = 272,374.10 : x - Step 2: Convert to fraction form
490,171.05/676,422.54 = 272,374.10/x - Step 3: Cross multiply
490,171.05x = 676,422.54 × 272,374.10 - Step 4: Simplify right side
490,171.05x = 184,239,980,552.21 - Step 5: Solve for x
x = 184,239,980,552.21/490,171.05 - Step 6: Final answer
x = 375,868.75
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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.