Finding the Fourth Proportional to 236,425.77, 326,267.08 and 128,995.74
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Solution
The fourth proportional to 236,425.77, 326,267.08 and 128,995.74 is: 178,013.86
Step by Step Solution
- Step 1: Write the proportion equation
236,425.77 : 326,267.08 = 128,995.74 : x - Step 2: Convert to fraction form
236,425.77/326,267.08 = 128,995.74/x - Step 3: Cross multiply
236,425.77x = 326,267.08 × 128,995.74 - Step 4: Simplify right side
236,425.77x = 42,087,063,422.24 - Step 5: Solve for x
x = 42,087,063,422.24/236,425.77 - Step 6: Final answer
x = 178,013.86
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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.