Finding the Fourth Proportional to 495,234.99, 742,884.09 and 140,276.40
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Solution
The fourth proportional to 495,234.99, 742,884.09 and 140,276.40 is: 210,423.55
Step by Step Solution
- Step 1: Write the proportion equation
495,234.99 : 742,884.09 = 140,276.40 : x - Step 2: Convert to fraction form
495,234.99/742,884.09 = 140,276.40/x - Step 3: Cross multiply
495,234.99x = 742,884.09 × 140,276.40 - Step 4: Simplify right side
495,234.99x = 104,209,105,762.48 - Step 5: Solve for x
x = 104,209,105,762.48/495,234.99 - Step 6: Final answer
x = 210,423.55
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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.