Finding the Fourth Proportional to 257,165.65, 354,930.65 and 153,793.09
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Solution
The fourth proportional to 257,165.65, 354,930.65 and 153,793.09 is: 212,259.61
Step by Step Solution
- Step 1: Write the proportion equation
257,165.65 : 354,930.65 = 153,793.09 : x - Step 2: Convert to fraction form
257,165.65/354,930.65 = 153,793.09/x - Step 3: Cross multiply
257,165.65x = 354,930.65 × 153,793.09 - Step 4: Simplify right side
257,165.65x = 54,585,881,399.21 - Step 5: Solve for x
x = 54,585,881,399.21/257,165.65 - Step 6: Final answer
x = 212,259.61
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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.