Finding the Fourth Proportional to 280,970.24, 387,740.18 and 153,645.66
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Solution
The fourth proportional to 280,970.24, 387,740.18 and 153,645.66 is: 212,031.70
Step by Step Solution
- Step 1: Write the proportion equation
280,970.24 : 387,740.18 = 153,645.66 : x - Step 2: Convert to fraction form
280,970.24/387,740.18 = 153,645.66/x - Step 3: Cross multiply
280,970.24x = 387,740.18 × 153,645.66 - Step 4: Simplify right side
280,970.24x = 59,574,596,248.73 - Step 5: Solve for x
x = 59,574,596,248.73/280,970.24 - Step 6: Final answer
x = 212,031.70
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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.