Finding the Fourth Proportional to 512,455.60, 768,756.30 and 157,416.40
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Solution
The fourth proportional to 512,455.60, 768,756.30 and 157,416.40 is: 236,146.99
Step by Step Solution
- Step 1: Write the proportion equation
512,455.60 : 768,756.30 = 157,416.40 : x - Step 2: Convert to fraction form
512,455.60/768,756.30 = 157,416.40/x - Step 3: Cross multiply
512,455.60x = 768,756.30 × 157,416.40 - Step 4: Simplify right side
512,455.60x = 121,014,849,223.32 - Step 5: Solve for x
x = 121,014,849,223.32/512,455.60 - Step 6: Final answer
x = 236,146.99
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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.