Finding the Fourth Proportional to 427,209.14, 640,682.46 and 202,503.08
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Solution
The fourth proportional to 427,209.14, 640,682.46 and 202,503.08 is: 303,692.40
Step by Step Solution
- Step 1: Write the proportion equation
427,209.14 : 640,682.46 = 202,503.08 : x - Step 2: Convert to fraction form
427,209.14/640,682.46 = 202,503.08/x - Step 3: Cross multiply
427,209.14x = 640,682.46 × 202,503.08 - Step 4: Simplify right side
427,209.14x = 129,740,168,248.57 - Step 5: Solve for x
x = 129,740,168,248.57/427,209.14 - Step 6: Final answer
x = 303,692.40
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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.