Finding the Fourth Proportional to 320,391.70, 480,210.28 and 130,733.70
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Solution
The fourth proportional to 320,391.70, 480,210.28 and 130,733.70 is: 195,946.61
Step by Step Solution
- Step 1: Write the proportion equation
320,391.70 : 480,210.28 = 130,733.70 : x - Step 2: Convert to fraction form
320,391.70/480,210.28 = 130,733.70/x - Step 3: Cross multiply
320,391.70x = 480,210.28 × 130,733.70 - Step 4: Simplify right side
320,391.70x = 62,779,666,682.44 - Step 5: Solve for x
x = 62,779,666,682.44/320,391.70 - Step 6: Final answer
x = 195,946.61
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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.