Finding the Fourth Proportional to 306,595.68, 423,101.70 and 172,459.68
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Solution
The fourth proportional to 306,595.68, 423,101.70 and 172,459.68 is: 237,994.17
Step by Step Solution
- Step 1: Write the proportion equation
306,595.68 : 423,101.70 = 172,459.68 : x - Step 2: Convert to fraction form
306,595.68/423,101.70 = 172,459.68/x - Step 3: Cross multiply
306,595.68x = 423,101.70 × 172,459.68 - Step 4: Simplify right side
306,595.68x = 72,967,983,789.46 - Step 5: Solve for x
x = 72,967,983,789.46/306,595.68 - Step 6: Final answer
x = 237,994.17
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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.