Finding the Fourth Proportional to 228,043.76, 314,709.26 and 151,430.75
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Solution
The fourth proportional to 228,043.76, 314,709.26 and 151,430.75 is: 208,980.33
Step by Step Solution
- Step 1: Write the proportion equation
228,043.76 : 314,709.26 = 151,430.75 : x - Step 2: Convert to fraction form
228,043.76/314,709.26 = 151,430.75/x - Step 3: Cross multiply
228,043.76x = 314,709.26 × 151,430.75 - Step 4: Simplify right side
228,043.76x = 47,656,658,123.20 - Step 5: Solve for x
x = 47,656,658,123.20/228,043.76 - Step 6: Final answer
x = 208,980.33
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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.