Finding the Fourth Proportional to 256,513.24, 353,987.40 and 143,335.99
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Solution
The fourth proportional to 256,513.24, 353,987.40 and 143,335.99 is: 197,803.18
Step by Step Solution
- Step 1: Write the proportion equation
256,513.24 : 353,987.40 = 143,335.99 : x - Step 2: Convert to fraction form
256,513.24/353,987.40 = 143,335.99/x - Step 3: Cross multiply
256,513.24x = 353,987.40 × 143,335.99 - Step 4: Simplify right side
256,513.24x = 50,739,134,426.53 - Step 5: Solve for x
x = 50,739,134,426.53/256,513.24 - Step 6: Final answer
x = 197,803.18
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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.