Finding the Fourth Proportional to 457,128.84, 630,806.22 and 253,165.08
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Solution
The fourth proportional to 457,128.84, 630,806.22 and 253,165.08 is: 349,350.32
Step by Step Solution
- Step 1: Write the proportion equation
457,128.84 : 630,806.22 = 253,165.08 : x - Step 2: Convert to fraction form
457,128.84/630,806.22 = 253,165.08/x - Step 3: Cross multiply
457,128.84x = 630,806.22 × 253,165.08 - Step 4: Simplify right side
457,128.84x = 159,698,107,150.80 - Step 5: Solve for x
x = 159,698,107,150.80/457,128.84 - Step 6: Final answer
x = 349,350.32
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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.