Finding the Fourth Proportional to 369,640.80, 554,461.20 and 201,679.20
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Solution
The fourth proportional to 369,640.80, 554,461.20 and 201,679.20 is: 302,518.80
Step by Step Solution
- Step 1: Write the proportion equation
369,640.80 : 554,461.20 = 201,679.20 : x - Step 2: Convert to fraction form
369,640.80/554,461.20 = 201,679.20/x - Step 3: Cross multiply
369,640.80x = 554,461.20 × 201,679.20 - Step 4: Simplify right side
369,640.80x = 111,823,291,247.04 - Step 5: Solve for x
x = 111,823,291,247.04/369,640.80 - Step 6: Final answer
x = 302,518.80
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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.