Finding the Fourth Proportional to 489,719.70, 734,233.95 and 223,607.70
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Solution
The fourth proportional to 489,719.70, 734,233.95 and 223,607.70 is: 335,253.75
Step by Step Solution
- Step 1: Write the proportion equation
489,719.70 : 734,233.95 = 223,607.70 : x - Step 2: Convert to fraction form
489,719.70/734,233.95 = 223,607.70/x - Step 3: Cross multiply
489,719.70x = 734,233.95 × 223,607.70 - Step 4: Simplify right side
489,719.70x = 164,180,364,821.42 - Step 5: Solve for x
x = 164,180,364,821.42/489,719.70 - Step 6: Final answer
x = 335,253.75
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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.