Finding the Fourth Proportional to 306,005.70, 459,008.55 and 212,693.70
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Solution
The fourth proportional to 306,005.70, 459,008.55 and 212,693.70 is: 319,040.55
Step by Step Solution
- Step 1: Write the proportion equation
306,005.70 : 459,008.55 = 212,693.70 : x - Step 2: Convert to fraction form
306,005.70/459,008.55 = 212,693.70/x - Step 3: Cross multiply
306,005.70x = 459,008.55 × 212,693.70 - Step 4: Simplify right side
306,005.70x = 97,628,226,831.14 - Step 5: Solve for x
x = 97,628,226,831.14/306,005.70 - Step 6: Final answer
x = 319,040.55
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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.