Finding the Fourth Proportional to 283,579.20, 425,368.80 and 257,335.20
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Solution
The fourth proportional to 283,579.20, 425,368.80 and 257,335.20 is: 386,002.80
Step by Step Solution
- Step 1: Write the proportion equation
283,579.20 : 425,368.80 = 257,335.20 : x - Step 2: Convert to fraction form
283,579.20/425,368.80 = 257,335.20/x - Step 3: Cross multiply
283,579.20x = 425,368.80 × 257,335.20 - Step 4: Simplify right side
283,579.20x = 109,462,365,221.76 - Step 5: Solve for x
x = 109,462,365,221.76/283,579.20 - Step 6: Final answer
x = 386,002.80
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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.