Finding the Fourth Proportional to 256,865.44, 354,488.08 and 143,681.44
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Solution
The fourth proportional to 256,865.44, 354,488.08 and 143,681.44 is: 198,288.09
Step by Step Solution
- Step 1: Write the proportion equation
256,865.44 : 354,488.08 = 143,681.44 : x - Step 2: Convert to fraction form
256,865.44/354,488.08 = 143,681.44/x - Step 3: Cross multiply
256,865.44x = 354,488.08 × 143,681.44 - Step 4: Simplify right side
256,865.44x = 50,933,357,797.24 - Step 5: Solve for x
x = 50,933,357,797.24/256,865.44 - Step 6: Final answer
x = 198,288.09
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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.