Finding the Fourth Proportional to 340,928.74, 470,484.78 and 187,972.42
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Solution
The fourth proportional to 340,928.74, 470,484.78 and 187,972.42 is: 259,403.66
Step by Step Solution
- Step 1: Write the proportion equation
340,928.74 : 470,484.78 = 187,972.42 : x - Step 2: Convert to fraction form
340,928.74/470,484.78 = 187,972.42/x - Step 3: Cross multiply
340,928.74x = 470,484.78 × 187,972.42 - Step 4: Simplify right side
340,928.74x = 88,438,162,669.77 - Step 5: Solve for x
x = 88,438,162,669.77/340,928.74 - Step 6: Final answer
x = 259,403.66
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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.