Finding the Fourth Proportional to 226,444.31, 312,509.48 and 135,798.63
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Solution
The fourth proportional to 226,444.31, 312,509.48 and 135,798.63 is: 187,411.90
Step by Step Solution
- Step 1: Write the proportion equation
226,444.31 : 312,509.48 = 135,798.63 : x - Step 2: Convert to fraction form
226,444.31/312,509.48 = 135,798.63/x - Step 3: Cross multiply
226,444.31x = 312,509.48 × 135,798.63 - Step 4: Simplify right side
226,444.31x = 42,438,357,395.11 - Step 5: Solve for x
x = 42,438,357,395.11/226,444.31 - Step 6: Final answer
x = 187,411.90
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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.