Finding the Fourth Proportional to 219,107.76, 328,777.36 and 155,477.07
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Solution
The fourth proportional to 219,107.76, 328,777.36 and 155,477.07 is: 233,297.72
Step by Step Solution
- Step 1: Write the proportion equation
219,107.76 : 328,777.36 = 155,477.07 : x - Step 2: Convert to fraction form
219,107.76/328,777.36 = 155,477.07/x - Step 3: Cross multiply
219,107.76x = 328,777.36 × 155,477.07 - Step 4: Simplify right side
219,107.76x = 51,117,340,615.14 - Step 5: Solve for x
x = 51,117,340,615.14/219,107.76 - Step 6: Final answer
x = 233,297.72
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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.