Finding the Fourth Proportional to 292,267.20, 409,588.80 and 292,267.20
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Solution
The fourth proportional to 292,267.20, 409,588.80 and 292,267.20 is: 409,588.80
Step by Step Solution
- Step 1: Write the proportion equation
292,267.20 : 409,588.80 = 292,267.20 : x - Step 2: Convert to fraction form
292,267.20/409,588.80 = 292,267.20/x - Step 3: Cross multiply
292,267.20x = 409,588.80 × 292,267.20 - Step 4: Simplify right side
292,267.20x = 119,709,371,727.36 - Step 5: Solve for x
x = 119,709,371,727.36/292,267.20 - Step 6: Final answer
x = 409,588.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.