Finding the Fourth Proportional to 197,656.70, 272,762.95 and 107,011.93
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Solution
The fourth proportional to 197,656.70, 272,762.95 and 107,011.93 is: 147,674.68
Step by Step Solution
- Step 1: Write the proportion equation
197,656.70 : 272,762.95 = 107,011.93 : x - Step 2: Convert to fraction form
197,656.70/272,762.95 = 107,011.93/x - Step 3: Cross multiply
197,656.70x = 272,762.95 × 107,011.93 - Step 4: Simplify right side
197,656.70x = 29,188,889,711.99 - Step 5: Solve for x
x = 29,188,889,711.99/197,656.70 - Step 6: Final answer
x = 147,674.68
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1.5x scale
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.