Finding the Fourth Proportional to 307,494.76, 424,160.08 and 239,403.88
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Solution
The fourth proportional to 307,494.76, 424,160.08 and 239,403.88 is: 330,235.12
Step by Step Solution
- Step 1: Write the proportion equation
307,494.76 : 424,160.08 = 239,403.88 : x - Step 2: Convert to fraction form
307,494.76/424,160.08 = 239,403.88/x - Step 3: Cross multiply
307,494.76x = 424,160.08 × 239,403.88 - Step 4: Simplify right side
307,494.76x = 101,545,567,631.85 - Step 5: Solve for x
x = 101,545,567,631.85/307,494.76 - Step 6: Final answer
x = 330,235.12
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1.5x scale
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.