Finding the Fourth Proportional to 304,811.70, 420,688.08 and 183,970.14
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Solution
The fourth proportional to 304,811.70, 420,688.08 and 183,970.14 is: 253,907.72
Step by Step Solution
- Step 1: Write the proportion equation
304,811.70 : 420,688.08 = 183,970.14 : x - Step 2: Convert to fraction form
304,811.70/420,688.08 = 183,970.14/x - Step 3: Cross multiply
304,811.70x = 420,688.08 × 183,970.14 - Step 4: Simplify right side
304,811.70x = 77,394,044,973.93 - Step 5: Solve for x
x = 77,394,044,973.93/304,811.70 - Step 6: Final answer
x = 253,907.72
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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.