Finding the Fourth Proportional to 310,090.06, 427,898.01 and 187,628.05
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Solution
The fourth proportional to 310,090.06, 427,898.01 and 187,628.05 is: 258,910.81
Step by Step Solution
- Step 1: Write the proportion equation
310,090.06 : 427,898.01 = 187,628.05 : x - Step 2: Convert to fraction form
310,090.06/427,898.01 = 187,628.05/x - Step 3: Cross multiply
310,090.06x = 427,898.01 × 187,628.05 - Step 4: Simplify right side
310,090.06x = 80,285,669,215.18 - Step 5: Solve for x
x = 80,285,669,215.18/310,090.06 - Step 6: Final answer
x = 258,910.81
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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.