Finding the Fourth Proportional to 317,658.96, 438,337.08 and 190,331.28
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Solution
The fourth proportional to 317,658.96, 438,337.08 and 190,331.28 is: 262,637.82
Step by Step Solution
- Step 1: Write the proportion equation
317,658.96 : 438,337.08 = 190,331.28 : x - Step 2: Convert to fraction form
317,658.96/438,337.08 = 190,331.28/x - Step 3: Cross multiply
317,658.96x = 438,337.08 × 190,331.28 - Step 4: Simplify right side
317,658.96x = 83,429,257,507.86 - Step 5: Solve for x
x = 83,429,257,507.86/317,658.96 - Step 6: Final answer
x = 262,637.82
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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.