Finding the Fourth Proportional to 518,984.90, 778,331.55 and 164,107.70
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Solution
The fourth proportional to 518,984.90, 778,331.55 and 164,107.70 is: 246,115.45
Step by Step Solution
- Step 1: Write the proportion equation
518,984.90 : 778,331.55 = 164,107.70 : x - Step 2: Convert to fraction form
518,984.90/778,331.55 = 164,107.70/x - Step 3: Cross multiply
518,984.90x = 778,331.55 × 164,107.70 - Step 4: Simplify right side
518,984.90x = 127,730,200,507.94 - Step 5: Solve for x
x = 127,730,200,507.94/518,984.90 - Step 6: Final answer
x = 246,115.45
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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.