Finding the Fourth Proportional to 495,193.20, 742,789.80 and 140,209.08
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Solution
The fourth proportional to 495,193.20, 742,789.80 and 140,209.08 is: 210,313.62
Step by Step Solution
- Step 1: Write the proportion equation
495,193.20 : 742,789.80 = 140,209.08 : x - Step 2: Convert to fraction form
495,193.20/742,789.80 = 140,209.08/x - Step 3: Cross multiply
495,193.20x = 742,789.80 × 140,209.08 - Step 4: Simplify right side
495,193.20x = 104,145,874,491.38 - Step 5: Solve for x
x = 104,145,874,491.38/495,193.20 - Step 6: Final answer
x = 210,313.62
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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.