Finding the Fourth Proportional to 316,138.14, 474,206.67 and 147,601.98
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Solution
The fourth proportional to 316,138.14, 474,206.67 and 147,601.98 is: 221,402.72
Step by Step Solution
- Step 1: Write the proportion equation
316,138.14 : 474,206.67 = 147,601.98 : x - Step 2: Convert to fraction form
316,138.14/474,206.67 = 147,601.98/x - Step 3: Cross multiply
316,138.14x = 474,206.67 × 147,601.98 - Step 4: Simplify right side
316,138.14x = 69,993,843,421.21 - Step 5: Solve for x
x = 69,993,843,421.21/316,138.14 - Step 6: Final answer
x = 221,402.72
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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.