Finding the Fourth Proportional to 313,390.64, 470,030.41 and 142,572.68
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Solution
The fourth proportional to 313,390.64, 470,030.41 and 142,572.68 is: 213,833.75
Step by Step Solution
- Step 1: Write the proportion equation
313,390.64 : 470,030.41 = 142,572.68 : x - Step 2: Convert to fraction form
313,390.64/470,030.41 = 142,572.68/x - Step 3: Cross multiply
313,390.64x = 470,030.41 × 142,572.68 - Step 4: Simplify right side
313,390.64x = 67,013,494,825.88 - Step 5: Solve for x
x = 67,013,494,825.88/313,390.64 - Step 6: Final answer
x = 213,833.75
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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.