Finding the Fourth Proportional to 287,259.28, 430,508.76 and 220,444.08
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Solution
The fourth proportional to 287,259.28, 430,508.76 and 220,444.08 is: 330,374.38
Step by Step Solution
- Step 1: Write the proportion equation
287,259.28 : 430,508.76 = 220,444.08 : x - Step 2: Convert to fraction form
287,259.28/430,508.76 = 220,444.08/x - Step 3: Cross multiply
287,259.28x = 430,508.76 × 220,444.08 - Step 4: Simplify right side
287,259.28x = 94,903,107,530.14 - Step 5: Solve for x
x = 94,903,107,530.14/287,259.28 - Step 6: Final answer
x = 330,374.38
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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.