Finding the Fourth Proportional to 145,920.91, 218,864.96 and 39,312.75
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Solution
The fourth proportional to 145,920.91, 218,864.96 and 39,312.75 is: 58,964.70
Step by Step Solution
- Step 1: Write the proportion equation
145,920.91 : 218,864.96 = 39,312.75 : x - Step 2: Convert to fraction form
145,920.91/218,864.96 = 39,312.75/x - Step 3: Cross multiply
145,920.91x = 218,864.96 × 39,312.75 - Step 4: Simplify right side
145,920.91x = 8,604,182,165.35 - Step 5: Solve for x
x = 8,604,182,165.35/145,920.91 - Step 6: Final answer
x = 58,964.70
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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.