Finding the Fourth Proportional to 210,503.03, 290,490.79 and 115,007.68
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Solution
The fourth proportional to 210,503.03, 290,490.79 and 115,007.68 is: 158,708.75
Step by Step Solution
- Step 1: Write the proportion equation
210,503.03 : 290,490.79 = 115,007.68 : x - Step 2: Convert to fraction form
210,503.03/290,490.79 = 115,007.68/x - Step 3: Cross multiply
210,503.03x = 290,490.79 × 115,007.68 - Step 4: Simplify right side
210,503.03x = 33,408,671,819.27 - Step 5: Solve for x
x = 33,408,671,819.27/210,503.03 - Step 6: Final answer
x = 158,708.75
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1.5x scale
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.