Finding the Fourth Proportional to 288,646.74, 398,073.69 and 240,408.81
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Solution
The fourth proportional to 288,646.74, 398,073.69 and 240,408.81 is: 331,548.60
Step by Step Solution
- Step 1: Write the proportion equation
288,646.74 : 398,073.69 = 240,408.81 : x - Step 2: Convert to fraction form
288,646.74/398,073.69 = 240,408.81/x - Step 3: Cross multiply
288,646.74x = 398,073.69 × 240,408.81 - Step 4: Simplify right side
288,646.74x = 95,700,422,105.21 - Step 5: Solve for x
x = 95,700,422,105.21/288,646.74 - Step 6: Final answer
x = 331,548.60
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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.