Finding the Fourth Proportional to 292,564.80, 437,875.20 and 212,374.80
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Solution
The fourth proportional to 292,564.80, 437,875.20 and 212,374.80 is: 317,856.62
Step by Step Solution
- Step 1: Write the proportion equation
292,564.80 : 437,875.20 = 212,374.80 : x - Step 2: Convert to fraction form
292,564.80/437,875.20 = 212,374.80/x - Step 3: Cross multiply
292,564.80x = 437,875.20 × 212,374.80 - Step 4: Simplify right side
292,564.80x = 92,993,658,024.96 - Step 5: Solve for x
x = 92,993,658,024.96/292,564.80 - Step 6: Final answer
x = 317,856.62
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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.