Finding the Fourth Proportional to 272,448.84, 408,793.14 and 139,438.74
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Solution
The fourth proportional to 272,448.84, 408,793.14 and 139,438.74 is: 209,219.46
Step by Step Solution
- Step 1: Write the proportion equation
272,448.84 : 408,793.14 = 139,438.74 : x - Step 2: Convert to fraction form
272,448.84/408,793.14 = 139,438.74/x - Step 3: Cross multiply
272,448.84x = 408,793.14 × 139,438.74 - Step 4: Simplify right side
272,448.84x = 57,001,600,362.24 - Step 5: Solve for x
x = 57,001,600,362.24/272,448.84 - Step 6: Final answer
x = 209,219.46
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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.