Finding the Fourth Proportional to 155,665.40, 233,495.70 and 105,621.08
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Solution
The fourth proportional to 155,665.40, 233,495.70 and 105,621.08 is: 158,429.99
Step by Step Solution
- Step 1: Write the proportion equation
155,665.40 : 233,495.70 = 105,621.08 : x - Step 2: Convert to fraction form
155,665.40/233,495.70 = 105,621.08/x - Step 3: Cross multiply
155,665.40x = 233,495.70 × 105,621.08 - Step 4: Simplify right side
155,665.40x = 24,662,068,009.36 - Step 5: Solve for x
x = 24,662,068,009.36/155,665.40 - Step 6: Final answer
x = 158,429.99
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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.