Finding the Fourth Proportional to 380,430.42, 524,987.49 and 210,660.90
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Solution
The fourth proportional to 380,430.42, 524,987.49 and 210,660.90 is: 290,708.45
Step by Step Solution
- Step 1: Write the proportion equation
380,430.42 : 524,987.49 = 210,660.90 : x - Step 2: Convert to fraction form
380,430.42/524,987.49 = 210,660.90/x - Step 3: Cross multiply
380,430.42x = 524,987.49 × 210,660.90 - Step 4: Simplify right side
380,430.42x = 110,594,337,132.14 - Step 5: Solve for x
x = 110,594,337,132.14/380,430.42 - Step 6: Final answer
x = 290,708.45
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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.