Finding the Fourth Proportional to 283,354.58, 391,031.88 and 156,030.68
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Solution
The fourth proportional to 283,354.58, 391,031.88 and 156,030.68 is: 215,323.75
Step by Step Solution
- Step 1: Write the proportion equation
283,354.58 : 391,031.88 = 156,030.68 : x - Step 2: Convert to fraction form
283,354.58/391,031.88 = 156,030.68/x - Step 3: Cross multiply
283,354.58x = 391,031.88 × 156,030.68 - Step 4: Simplify right side
283,354.58x = 61,012,970,138.08 - Step 5: Solve for x
x = 61,012,970,138.08/283,354.58 - Step 6: Final answer
x = 215,323.75
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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.