Finding the Fourth Proportional to 423,529.81, 635,159.99 and 139,154.81
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Solution
The fourth proportional to 423,529.81, 635,159.99 and 139,154.81 is: 208,687.95
Step by Step Solution
- Step 1: Write the proportion equation
423,529.81 : 635,159.99 = 139,154.81 : x - Step 2: Convert to fraction form
423,529.81/635,159.99 = 139,154.81/x - Step 3: Cross multiply
423,529.81x = 635,159.99 × 139,154.81 - Step 4: Simplify right side
423,529.81x = 88,385,567,728.05 - Step 5: Solve for x
x = 88,385,567,728.05/423,529.81 - Step 6: Final answer
x = 208,687.95
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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.