Finding the Fourth Proportional to 493,873.35, 740,809.85 and 138,887.36
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Solution
The fourth proportional to 493,873.35, 740,809.85 and 138,887.36 is: 208,330.99
Step by Step Solution
- Step 1: Write the proportion equation
493,873.35 : 740,809.85 = 138,887.36 : x - Step 2: Convert to fraction form
493,873.35/740,809.85 = 138,887.36/x - Step 3: Cross multiply
493,873.35x = 740,809.85 × 138,887.36 - Step 4: Simplify right side
493,873.35x = 102,889,123,489.29 - Step 5: Solve for x
x = 102,889,123,489.29/493,873.35 - Step 6: Final answer
x = 208,330.99
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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.