Finding the Fourth Proportional to 243,972.40, 336,501.12 and 172,277.68
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Solution
The fourth proportional to 243,972.40, 336,501.12 and 172,277.68 is: 237,615.53
Step by Step Solution
- Step 1: Write the proportion equation
243,972.40 : 336,501.12 = 172,277.68 : x - Step 2: Convert to fraction form
243,972.40/336,501.12 = 172,277.68/x - Step 3: Cross multiply
243,972.40x = 336,501.12 × 172,277.68 - Step 4: Simplify right side
243,972.40x = 57,971,632,271.00 - Step 5: Solve for x
x = 57,971,632,271.00/243,972.40 - Step 6: Final answer
x = 237,615.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.