Finding the Fourth Proportional to 140,260.68, 209,155.68 and 138,997.08
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Solution
The fourth proportional to 140,260.68, 209,155.68 and 138,997.08 is: 207,271.41
Step by Step Solution
- Step 1: Write the proportion equation
140,260.68 : 209,155.68 = 138,997.08 : x - Step 2: Convert to fraction form
140,260.68/209,155.68 = 138,997.08/x - Step 3: Cross multiply
140,260.68x = 209,155.68 × 138,997.08 - Step 4: Simplify right side
140,260.68x = 29,072,028,785.41 - Step 5: Solve for x
x = 29,072,028,785.41/140,260.68 - Step 6: Final answer
x = 207,271.41
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.