Finding the Fourth Proportional to 288,014.98, 397,483.01 and 158,978.74
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Solution
The fourth proportional to 288,014.98, 397,483.01 and 158,978.74 is: 219,402.99
Step by Step Solution
- Step 1: Write the proportion equation
288,014.98 : 397,483.01 = 158,978.74 : x - Step 2: Convert to fraction form
288,014.98/397,483.01 = 158,978.74/x - Step 3: Cross multiply
288,014.98x = 397,483.01 × 158,978.74 - Step 4: Simplify right side
288,014.98x = 63,191,346,511.24 - Step 5: Solve for x
x = 63,191,346,511.24/288,014.98 - Step 6: Final answer
x = 219,402.99
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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.