Finding the Fourth Proportional to 331,641.60, 457,663.68 and 180,737.28
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Solution
The fourth proportional to 331,641.60, 457,663.68 and 180,737.28 is: 249,416.50
Step by Step Solution
- Step 1: Write the proportion equation
331,641.60 : 457,663.68 = 180,737.28 : x - Step 2: Convert to fraction form
331,641.60/457,663.68 = 180,737.28/x - Step 3: Cross multiply
331,641.60x = 457,663.68 × 180,737.28 - Step 4: Simplify right side
331,641.60x = 82,716,888,677.99 - Step 5: Solve for x
x = 82,716,888,677.99/331,641.60 - Step 6: Final answer
x = 249,416.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.