Finding the Fourth Proportional to 272,869.74, 408,548.87 and 139,462.74
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Solution
The fourth proportional to 272,869.74, 408,548.87 and 139,462.74 is: 208,807.85
Step by Step Solution
- Step 1: Write the proportion equation
272,869.74 : 408,548.87 = 139,462.74 : x - Step 2: Convert to fraction form
272,869.74/408,548.87 = 139,462.74/x - Step 3: Cross multiply
272,869.74x = 408,548.87 × 139,462.74 - Step 4: Simplify right side
272,869.74x = 56,977,344,834.10 - Step 5: Solve for x
x = 56,977,344,834.10/272,869.74 - Step 6: Final answer
x = 208,807.85
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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.