Finding the Fourth Proportional to 408,404.76, 563,515.98 and 238,606.08
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Solution
The fourth proportional to 408,404.76, 563,515.98 and 238,606.08 is: 329,228.14
Step by Step Solution
- Step 1: Write the proportion equation
408,404.76 : 563,515.98 = 238,606.08 : x - Step 2: Convert to fraction form
408,404.76/563,515.98 = 238,606.08/x - Step 3: Cross multiply
408,404.76x = 563,515.98 × 238,606.08 - Step 4: Simplify right side
408,404.76x = 134,458,339,005.16 - Step 5: Solve for x
x = 134,458,339,005.16/408,404.76 - Step 6: Final answer
x = 329,228.14
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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.