Finding the Fourth Proportional to 236,341.96, 326,151.90 and 128,911.99
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Solution
The fourth proportional to 236,341.96, 326,151.90 and 128,911.99 is: 177,898.54
Step by Step Solution
- Step 1: Write the proportion equation
236,341.96 : 326,151.90 = 128,911.99 : x - Step 2: Convert to fraction form
236,341.96/326,151.90 = 128,911.99/x - Step 3: Cross multiply
236,341.96x = 326,151.90 × 128,911.99 - Step 4: Simplify right side
236,341.96x = 42,044,890,139.32 - Step 5: Solve for x
x = 42,044,890,139.32/236,341.96 - Step 6: Final answer
x = 177,898.54
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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.