Finding the Fourth Proportional to 316,658.16, 436,988.93 and 171,465.53
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Solution
The fourth proportional to 316,658.16, 436,988.93 and 171,465.53 is: 236,622.78
Step by Step Solution
- Step 1: Write the proportion equation
316,658.16 : 436,988.93 = 171,465.53 : x - Step 2: Convert to fraction form
316,658.16/436,988.93 = 171,465.53/x - Step 3: Cross multiply
316,658.16x = 436,988.93 × 171,465.53 - Step 4: Simplify right side
316,658.16x = 74,928,535,444.31 - Step 5: Solve for x
x = 74,928,535,444.31/316,658.16 - Step 6: Final answer
x = 236,622.78
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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.