Finding the Fourth Proportional to 583,138.80, 874,708.20 and 209,113.20
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Solution
The fourth proportional to 583,138.80, 874,708.20 and 209,113.20 is: 313,669.80
Step by Step Solution
- Step 1: Write the proportion equation
583,138.80 : 874,708.20 = 209,113.20 : x - Step 2: Convert to fraction form
583,138.80/874,708.20 = 209,113.20/x - Step 3: Cross multiply
583,138.80x = 874,708.20 × 209,113.20 - Step 4: Simplify right side
583,138.80x = 182,913,030,768.24 - Step 5: Solve for x
x = 182,913,030,768.24/583,138.80 - Step 6: Final answer
x = 313,669.80
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Similar ratio
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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.