Finding the Fourth Proportional to 422,658.69, 633,920.59 and 156,358.63
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Solution
The fourth proportional to 422,658.69, 633,920.59 and 156,358.63 is: 234,512.99
Step by Step Solution
- Step 1: Write the proportion equation
422,658.69 : 633,920.59 = 156,358.63 : x - Step 2: Convert to fraction form
422,658.69/633,920.59 = 156,358.63/x - Step 3: Cross multiply
422,658.69x = 633,920.59 × 156,358.63 - Step 4: Simplify right side
422,658.69x = 99,118,954,981.19 - Step 5: Solve for x
x = 99,118,954,981.19/422,658.69 - Step 6: Final answer
x = 234,512.99
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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.