Finding the Fourth Proportional to 423,207, 634,847.76 and 156,970.44
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Solution
The fourth proportional to 423,207, 634,847.76 and 156,970.44 is: 235,469.48
Step by Step Solution
- Step 1: Write the proportion equation
423,207 : 634,847.76 = 156,970.44 : x - Step 2: Convert to fraction form
423,207/634,847.76 = 156,970.44/x - Step 3: Cross multiply
423,207x = 634,847.76 × 156,970.44 - Step 4: Simplify right side
423,207x = 99,652,332,220.21 - Step 5: Solve for x
x = 99,652,332,220.21/423,207 - Step 6: Final answer
x = 235,469.48
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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.