Finding the Fourth Proportional to 338,432.05, 507,648.08 and 243,953.65
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Solution
The fourth proportional to 338,432.05, 507,648.08 and 243,953.65 is: 365,930.48
Step by Step Solution
- Step 1: Write the proportion equation
338,432.05 : 507,648.08 = 243,953.65 : x - Step 2: Convert to fraction form
338,432.05/507,648.08 = 243,953.65/x - Step 3: Cross multiply
338,432.05x = 507,648.08 × 243,953.65 - Step 4: Simplify right side
338,432.05x = 123,842,600,811.72 - Step 5: Solve for x
x = 123,842,600,811.72/338,432.05 - Step 6: Final answer
x = 365,930.48
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.