Finding the Fourth Proportional to 221,430.07, 305,590.41 and 125,931.07
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Solution
The fourth proportional to 221,430.07, 305,590.41 and 125,931.07 is: 173,794.49
Step by Step Solution
- Step 1: Write the proportion equation
221,430.07 : 305,590.41 = 125,931.07 : x - Step 2: Convert to fraction form
221,430.07/305,590.41 = 125,931.07/x - Step 3: Cross multiply
221,430.07x = 305,590.41 × 125,931.07 - Step 4: Simplify right side
221,430.07x = 38,483,325,155.43 - Step 5: Solve for x
x = 38,483,325,155.43/221,430.07 - Step 6: Final answer
x = 173,794.49
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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.