Finding the Fourth Proportional to 420,767.65, 631,157.05 and 140,284.99
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Solution
The fourth proportional to 420,767.65, 631,157.05 and 140,284.99 is: 210,429.34
Step by Step Solution
- Step 1: Write the proportion equation
420,767.65 : 631,157.05 = 140,284.99 : x - Step 2: Convert to fraction form
420,767.65/631,157.05 = 140,284.99/x - Step 3: Cross multiply
420,767.65x = 631,157.05 × 140,284.99 - Step 4: Simplify right side
420,767.65x = 88,541,856,590.47 - Step 5: Solve for x
x = 88,541,856,590.47/420,767.65 - Step 6: Final answer
x = 210,429.34
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.