Finding the Fourth Proportional to 149,655.80, 224,742.90 and 79,671.80
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Solution
The fourth proportional to 149,655.80, 224,742.90 and 79,671.80 is: 119,645.69
Step by Step Solution
- Step 1: Write the proportion equation
149,655.80 : 224,742.90 = 79,671.80 : x - Step 2: Convert to fraction form
149,655.80/224,742.90 = 79,671.80/x - Step 3: Cross multiply
149,655.80x = 224,742.90 × 79,671.80 - Step 4: Simplify right side
149,655.80x = 17,905,671,380.22 - Step 5: Solve for x
x = 17,905,671,380.22/149,655.80 - Step 6: Final answer
x = 119,645.69
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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.