Finding the Fourth Proportional to 357,643.76, 536,711.68 and 147,281.68
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Solution
The fourth proportional to 357,643.76, 536,711.68 and 147,281.68 is: 221,023.84
Step by Step Solution
- Step 1: Write the proportion equation
357,643.76 : 536,711.68 = 147,281.68 : x - Step 2: Convert to fraction form
357,643.76/536,711.68 = 147,281.68/x - Step 3: Cross multiply
357,643.76x = 536,711.68 × 147,281.68 - Step 4: Simplify right side
357,643.76x = 79,047,797,906.02 - Step 5: Solve for x
x = 79,047,797,906.02/357,643.76 - Step 6: Final answer
x = 221,023.84
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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.