Finding the Fourth Proportional to 180,574.44, 249,234.20 and 120,147.63
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Solution
The fourth proportional to 180,574.44, 249,234.20 and 120,147.63 is: 165,831.32
Step by Step Solution
- Step 1: Write the proportion equation
180,574.44 : 249,234.20 = 120,147.63 : x - Step 2: Convert to fraction form
180,574.44/249,234.20 = 120,147.63/x - Step 3: Cross multiply
180,574.44x = 249,234.20 × 120,147.63 - Step 4: Simplify right side
180,574.44x = 29,944,898,444.95 - Step 5: Solve for x
x = 29,944,898,444.95/180,574.44 - Step 6: Final answer
x = 165,831.32
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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.