Finding the Fourth Proportional to 180,843.74, 249,590.19 and 100,289.18
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Solution
The fourth proportional to 180,843.74, 249,590.19 and 100,289.18 is: 138,413.39
Step by Step Solution
- Step 1: Write the proportion equation
180,843.74 : 249,590.19 = 100,289.18 : x - Step 2: Convert to fraction form
180,843.74/249,590.19 = 100,289.18/x - Step 3: Cross multiply
180,843.74x = 249,590.19 × 100,289.18 - Step 4: Simplify right side
180,843.74x = 25,031,195,491.14 - Step 5: Solve for x
x = 25,031,195,491.14/180,843.74 - Step 6: Final answer
x = 138,413.39
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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.