Finding the Fourth Proportional to 235,683.81, 325,237.14 and 128,251.35
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Solution
The fourth proportional to 235,683.81, 325,237.14 and 128,251.35 is: 176,983.32
Step by Step Solution
- Step 1: Write the proportion equation
235,683.81 : 325,237.14 = 128,251.35 : x - Step 2: Convert to fraction form
235,683.81/325,237.14 = 128,251.35/x - Step 3: Cross multiply
235,683.81x = 325,237.14 × 128,251.35 - Step 4: Simplify right side
235,683.81x = 41,712,102,275.14 - Step 5: Solve for x
x = 41,712,102,275.14/235,683.81 - Step 6: Final answer
x = 176,983.32
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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.