Finding the Fourth Proportional to 228,203.12, 314,931.36 and 126,228.14
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Solution
The fourth proportional to 228,203.12, 314,931.36 and 126,228.14 is: 174,200.95
Step by Step Solution
- Step 1: Write the proportion equation
228,203.12 : 314,931.36 = 126,228.14 : x - Step 2: Convert to fraction form
228,203.12/314,931.36 = 126,228.14/x - Step 3: Cross multiply
228,203.12x = 314,931.36 × 126,228.14 - Step 4: Simplify right side
228,203.12x = 39,753,199,800.47 - Step 5: Solve for x
x = 39,753,199,800.47/228,203.12 - Step 6: Final answer
x = 174,200.95
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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.