Finding the Fourth Proportional to 139,242.02, 208,878.08 and 44,438.99
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Solution
The fourth proportional to 139,242.02, 208,878.08 and 44,438.99 is: 66,663.28
Step by Step Solution
- Step 1: Write the proportion equation
139,242.02 : 208,878.08 = 44,438.99 : x - Step 2: Convert to fraction form
139,242.02/208,878.08 = 44,438.99/x - Step 3: Cross multiply
139,242.02x = 208,878.08 × 44,438.99 - Step 4: Simplify right side
139,242.02x = 9,282,329,641.75 - Step 5: Solve for x
x = 9,282,329,641.75/139,242.02 - Step 6: Final answer
x = 66,663.28
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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.