Finding the Fourth Proportional to 305,303.99, 421,252.04 and 176,214.96
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Solution
The fourth proportional to 305,303.99, 421,252.04 and 176,214.96 is: 243,137.71
Step by Step Solution
- Step 1: Write the proportion equation
305,303.99 : 421,252.04 = 176,214.96 : x - Step 2: Convert to fraction form
305,303.99/421,252.04 = 176,214.96/x - Step 3: Cross multiply
305,303.99x = 421,252.04 × 176,214.96 - Step 4: Simplify right side
305,303.99x = 74,230,911,819.06 - Step 5: Solve for x
x = 74,230,911,819.06/305,303.99 - Step 6: Final answer
x = 243,137.71
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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.