Finding the Fourth Proportional to 368,901.80, 553,352.70 and 228,933.80
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Solution
The fourth proportional to 368,901.80, 553,352.70 and 228,933.80 is: 343,400.70
Step by Step Solution
- Step 1: Write the proportion equation
368,901.80 : 553,352.70 = 228,933.80 : x - Step 2: Convert to fraction form
368,901.80/553,352.70 = 228,933.80/x - Step 3: Cross multiply
368,901.80x = 553,352.70 × 228,933.80 - Step 4: Simplify right side
368,901.80x = 126,681,136,351.26 - Step 5: Solve for x
x = 126,681,136,351.26/368,901.80 - Step 6: Final answer
x = 343,400.70
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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.