Finding the Fourth Proportional to 260,830.80, 391,246.20 and 201,781.80
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Solution
The fourth proportional to 260,830.80, 391,246.20 and 201,781.80 is: 302,672.70
Step by Step Solution
- Step 1: Write the proportion equation
260,830.80 : 391,246.20 = 201,781.80 : x - Step 2: Convert to fraction form
260,830.80/391,246.20 = 201,781.80/x - Step 3: Cross multiply
260,830.80x = 391,246.20 × 201,781.80 - Step 4: Simplify right side
260,830.80x = 78,946,362,479.16 - Step 5: Solve for x
x = 78,946,362,479.16/260,830.80 - Step 6: Final answer
x = 302,672.70
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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.