Finding the Fourth Proportional to 639,278.02, 959,073.15 and 212,813.02
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Solution
The fourth proportional to 639,278.02, 959,073.15 and 212,813.02 is: 319,271.50
Step by Step Solution
- Step 1: Write the proportion equation
639,278.02 : 959,073.15 = 212,813.02 : x - Step 2: Convert to fraction form
639,278.02/959,073.15 = 212,813.02/x - Step 3: Cross multiply
639,278.02x = 959,073.15 × 212,813.02 - Step 4: Simplify right side
639,278.02x = 204,103,248,657.05 - Step 5: Solve for x
x = 204,103,248,657.05/639,278.02 - Step 6: Final answer
x = 319,271.50
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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.