Finding the Fourth Proportional to 235,681.91, 325,240.43 and 128,251.92
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Solution
The fourth proportional to 235,681.91, 325,240.43 and 128,251.92 is: 176,987.32
Step by Step Solution
- Step 1: Write the proportion equation
235,681.91 : 325,240.43 = 128,251.92 : x - Step 2: Convert to fraction form
235,681.91/325,240.43 = 128,251.92/x - Step 3: Cross multiply
235,681.91x = 325,240.43 × 128,251.92 - Step 4: Simplify right side
235,681.91x = 41,712,709,609.13 - Step 5: Solve for x
x = 41,712,709,609.13/235,681.91 - Step 6: Final answer
x = 176,987.32
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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.