Finding the Fourth Proportional to 457,239.39, 630,990.39 and 253,303.53
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Solution
The fourth proportional to 457,239.39, 630,990.39 and 253,303.53 is: 349,558.89
Step by Step Solution
- Step 1: Write the proportion equation
457,239.39 : 630,990.39 = 253,303.53 : x - Step 2: Convert to fraction form
457,239.39/630,990.39 = 253,303.53/x - Step 3: Cross multiply
457,239.39x = 630,990.39 × 253,303.53 - Step 4: Simplify right side
457,239.39x = 159,832,093,891.24 - Step 5: Solve for x
x = 159,832,093,891.24/457,239.39 - Step 6: Final answer
x = 349,558.89
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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.