Finding the Fourth Proportional to 399,981.68, 552,031.10 and 245,025.44
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Solution
The fourth proportional to 399,981.68, 552,031.10 and 245,025.44 is: 338,169.65
Step by Step Solution
- Step 1: Write the proportion equation
399,981.68 : 552,031.10 = 245,025.44 : x - Step 2: Convert to fraction form
399,981.68/552,031.10 = 245,025.44/x - Step 3: Cross multiply
399,981.68x = 552,031.10 × 245,025.44 - Step 4: Simplify right side
399,981.68x = 135,261,663,171.18 - Step 5: Solve for x
x = 135,261,663,171.18/399,981.68 - Step 6: Final answer
x = 338,169.65
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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.