Finding the Fourth Proportional to 469,303.92, 648,173.98 and 318,138.48
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Solution
The fourth proportional to 469,303.92, 648,173.98 and 318,138.48 is: 439,393.48
Step by Step Solution
- Step 1: Write the proportion equation
469,303.92 : 648,173.98 = 318,138.48 : x - Step 2: Convert to fraction form
469,303.92/648,173.98 = 318,138.48/x - Step 3: Cross multiply
469,303.92x = 648,173.98 × 318,138.48 - Step 4: Simplify right side
469,303.92x = 206,209,084,772.75 - Step 5: Solve for x
x = 206,209,084,772.75/469,303.92 - Step 6: Final answer
x = 439,393.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.