Finding the Fourth Proportional to 368,875.80, 553,313.70 and 228,907.80
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Solution
The fourth proportional to 368,875.80, 553,313.70 and 228,907.80 is: 343,361.70
Step by Step Solution
- Step 1: Write the proportion equation
368,875.80 : 553,313.70 = 228,907.80 : x - Step 2: Convert to fraction form
368,875.80/553,313.70 = 228,907.80/x - Step 3: Cross multiply
368,875.80x = 553,313.70 × 228,907.80 - Step 4: Simplify right side
368,875.80x = 126,657,821,776.86 - Step 5: Solve for x
x = 126,657,821,776.86/368,875.80 - Step 6: Final answer
x = 343,361.70
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1.5x scale
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.