Finding the Fourth Proportional to 328,575.98, 492,881.91 and 103,919.65
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Solution
The fourth proportional to 328,575.98, 492,881.91 and 103,919.65 is: 155,885.15
Step by Step Solution
- Step 1: Write the proportion equation
328,575.98 : 492,881.91 = 103,919.65 : x - Step 2: Convert to fraction form
328,575.98/492,881.91 = 103,919.65/x - Step 3: Cross multiply
328,575.98x = 492,881.91 × 103,919.65 - Step 4: Simplify right side
328,575.98x = 51,220,115,352.13 - Step 5: Solve for x
x = 51,220,115,352.13/328,575.98 - Step 6: Final answer
x = 155,885.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.