Finding the Fourth Proportional to 640,132.74, 960,248.12 and 190,819.26
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Solution
The fourth proportional to 640,132.74, 960,248.12 and 190,819.26 is: 286,243.50
Step by Step Solution
- Step 1: Write the proportion equation
640,132.74 : 960,248.12 = 190,819.26 : x - Step 2: Convert to fraction form
640,132.74/960,248.12 = 190,819.26/x - Step 3: Cross multiply
640,132.74x = 960,248.12 × 190,819.26 - Step 4: Simplify right side
640,132.74x = 183,233,834,720.70 - Step 5: Solve for x
x = 183,233,834,720.70/640,132.74 - Step 6: Final answer
x = 286,243.50
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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.