Finding the Fourth Proportional to 470,258.84, 705,378.54 and 115,274.72
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Solution
The fourth proportional to 470,258.84, 705,378.54 and 115,274.72 is: 172,909.70
Step by Step Solution
- Step 1: Write the proportion equation
470,258.84 : 705,378.54 = 115,274.72 : x - Step 2: Convert to fraction form
470,258.84/705,378.54 = 115,274.72/x - Step 3: Cross multiply
470,258.84x = 705,378.54 × 115,274.72 - Step 4: Simplify right side
470,258.84x = 81,312,313,692.51 - Step 5: Solve for x
x = 81,312,313,692.51/470,258.84 - Step 6: Final answer
x = 172,909.70
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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.