Finding the Fourth Proportional to 260,521.20, 390,781.80 and 176,321.70
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Solution
The fourth proportional to 260,521.20, 390,781.80 and 176,321.70 is: 264,482.55
Step by Step Solution
- Step 1: Write the proportion equation
260,521.20 : 390,781.80 = 176,321.70 : x - Step 2: Convert to fraction form
260,521.20/390,781.80 = 176,321.70/x - Step 3: Cross multiply
260,521.20x = 390,781.80 × 176,321.70 - Step 4: Simplify right side
260,521.20x = 68,903,311,305.06 - Step 5: Solve for x
x = 68,903,311,305.06/260,521.20 - Step 6: Final answer
x = 264,482.55
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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.