Finding the Fourth Proportional to 372,029.76, 513,510.35 and 242,987.99
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Solution
The fourth proportional to 372,029.76, 513,510.35 and 242,987.99 is: 335,394.79
Step by Step Solution
- Step 1: Write the proportion equation
372,029.76 : 513,510.35 = 242,987.99 : x - Step 2: Convert to fraction form
372,029.76/513,510.35 = 242,987.99/x - Step 3: Cross multiply
372,029.76x = 513,510.35 × 242,987.99 - Step 4: Simplify right side
372,029.76x = 124,776,844,008.21 - Step 5: Solve for x
x = 124,776,844,008.21/372,029.76 - Step 6: Final answer
x = 335,394.79
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1.5x scale
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.