Finding the Fourth Proportional to 163,931.70, 245,897.55 and 143,195.70
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Solution
The fourth proportional to 163,931.70, 245,897.55 and 143,195.70 is: 214,793.55
Step by Step Solution
- Step 1: Write the proportion equation
163,931.70 : 245,897.55 = 143,195.70 : x - Step 2: Convert to fraction form
163,931.70/245,897.55 = 143,195.70/x - Step 3: Cross multiply
163,931.70x = 245,897.55 × 143,195.70 - Step 4: Simplify right side
163,931.70x = 35,211,471,800.54 - Step 5: Solve for x
x = 35,211,471,800.54/163,931.70 - Step 6: Final answer
x = 214,793.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.