Finding the Fourth Proportional to 422,865.31, 583,860.38 and 272,224.75
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Solution
The fourth proportional to 422,865.31, 583,860.38 and 272,224.75 is: 375,867.31
Step by Step Solution
- Step 1: Write the proportion equation
422,865.31 : 583,860.38 = 272,224.75 : x - Step 2: Convert to fraction form
422,865.31/583,860.38 = 272,224.75/x - Step 3: Cross multiply
422,865.31x = 583,860.38 × 272,224.75 - Step 4: Simplify right side
422,865.31x = 158,941,245,980.41 - Step 5: Solve for x
x = 158,941,245,980.41/422,865.31 - Step 6: Final answer
x = 375,867.31
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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.