Finding the Fourth Proportional to 320,189.18, 480,283.76 and 120,554.35
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Solution
The fourth proportional to 320,189.18, 480,283.76 and 120,554.35 is: 180,831.52
Step by Step Solution
- Step 1: Write the proportion equation
320,189.18 : 480,283.76 = 120,554.35 : x - Step 2: Convert to fraction form
320,189.18/480,283.76 = 120,554.35/x - Step 3: Cross multiply
320,189.18x = 480,283.76 × 120,554.35 - Step 4: Simplify right side
320,189.18x = 57,900,295,603.03 - Step 5: Solve for x
x = 57,900,295,603.03/320,189.18 - Step 6: Final answer
x = 180,831.52
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1.5x scale
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.