Finding the Fourth Proportional to 274,206.18, 378,423.81 and 153,358.71
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Solution
The fourth proportional to 274,206.18, 378,423.81 and 153,358.71 is: 211,645.80
Step by Step Solution
- Step 1: Write the proportion equation
274,206.18 : 378,423.81 = 153,358.71 : x - Step 2: Convert to fraction form
274,206.18/378,423.81 = 153,358.71/x - Step 3: Cross multiply
274,206.18x = 378,423.81 × 153,358.71 - Step 4: Simplify right side
274,206.18x = 58,034,587,334.89 - Step 5: Solve for x
x = 58,034,587,334.89/274,206.18 - Step 6: Final answer
x = 211,645.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.