Finding the Fourth Proportional to 291,890.84, 402,809.19 and 157,754.84
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Solution
The fourth proportional to 291,890.84, 402,809.19 and 157,754.84 is: 217,701.59
Step by Step Solution
- Step 1: Write the proportion equation
291,890.84 : 402,809.19 = 157,754.84 : x - Step 2: Convert to fraction form
291,890.84/402,809.19 = 157,754.84/x - Step 3: Cross multiply
291,890.84x = 402,809.19 × 157,754.84 - Step 4: Simplify right side
291,890.84x = 63,545,099,318.98 - Step 5: Solve for x
x = 63,545,099,318.98/291,890.84 - Step 6: Final answer
x = 217,701.59
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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.