Finding the Fourth Proportional to 303,417.20, 455,125.80 and 93,027.80
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Solution
The fourth proportional to 303,417.20, 455,125.80 and 93,027.80 is: 139,541.70
Step by Step Solution
- Step 1: Write the proportion equation
303,417.20 : 455,125.80 = 93,027.80 : x - Step 2: Convert to fraction form
303,417.20/455,125.80 = 93,027.80/x - Step 3: Cross multiply
303,417.20x = 455,125.80 × 93,027.80 - Step 4: Simplify right side
303,417.20x = 42,339,351,897.24 - Step 5: Solve for x
x = 42,339,351,897.24/303,417.20 - Step 6: Final answer
x = 139,541.70
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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.