Finding the Fourth Proportional to 358,493.18, 537,739.85 and 147,899.74
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Solution
The fourth proportional to 358,493.18, 537,739.85 and 147,899.74 is: 221,849.64
Step by Step Solution
- Step 1: Write the proportion equation
358,493.18 : 537,739.85 = 147,899.74 : x - Step 2: Convert to fraction form
358,493.18/537,739.85 = 147,899.74/x - Step 3: Cross multiply
358,493.18x = 537,739.85 × 147,899.74 - Step 4: Simplify right side
358,493.18x = 79,531,584,002.64 - Step 5: Solve for x
x = 79,531,584,002.64/358,493.18 - Step 6: Final answer
x = 221,849.64
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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.