Finding the Fourth Proportional to 290,178.56, 432,911.51 and 274,484.00
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Solution
The fourth proportional to 290,178.56, 432,911.51 and 274,484.00 is: 409,497.11
Step by Step Solution
- Step 1: Write the proportion equation
290,178.56 : 432,911.51 = 274,484.00 : x - Step 2: Convert to fraction form
290,178.56/432,911.51 = 274,484.00/x - Step 3: Cross multiply
290,178.56x = 432,911.51 × 274,484.00 - Step 4: Simplify right side
290,178.56x = 118,827,282,620.70 - Step 5: Solve for x
x = 118,827,282,620.70/290,178.56 - Step 6: Final answer
x = 409,497.11
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.