Finding the Fourth Proportional to 236,417.76, 326,251.44 and 128,990.88
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Solution
The fourth proportional to 236,417.76, 326,251.44 and 128,990.88 is: 178,004.65
Step by Step Solution
- Step 1: Write the proportion equation
236,417.76 : 326,251.44 = 128,990.88 : x - Step 2: Convert to fraction form
236,417.76/326,251.44 = 128,990.88/x - Step 3: Cross multiply
236,417.76x = 326,251.44 × 128,990.88 - Step 4: Simplify right side
236,417.76x = 42,083,460,346.87 - Step 5: Solve for x
x = 42,083,460,346.87/236,417.76 - Step 6: Final answer
x = 178,004.65
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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.